1421507934 has 128 divisors (see below), whose sum is σ = 4019328000. Its totient is φ = 369169920.

The previous prime is 1421507917. The next prime is 1421507951. The reversal of 1421507934 is 4397051241.

1421507934 is a `hidden beast` number, since 142 + 1 + 507 + 9 + 3 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1421507917) and next prime (1421507951).

It is a super-3 number, since 3×1421507934³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 200254 + ... + 207230.

It is an arithmetic number, because the mean of its divisors is an integer number (31401000).

Almost surely, 2^1421507934 is an apocalyptic number.

1421507934 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421507934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2009664000).

1421507934 is an abundant number, since it is smaller than the sum of its proper divisors (2597820066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421507934 is a wasteful number, since it uses less digits than its factorization.

1421507934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7020 (or 7000 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1421507934 is about 37702.8902605623. The cubic root of 1421507934 is about 1124.3885886612.

The spelling of 1421507934 in words is "one billion, four hundred twenty-one million, five hundred seven thousand, nine hundred thirty-four".