1421142600 has 96 divisors (see below), whose sum is σ = 4458777120. Its totient is φ = 374392320.

The previous prime is 1421142577. The next prime is 1421142623. The reversal of 1421142600 is 62411241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1421142577) and next prime (1421142623).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35532 + ... + 64068.

It is an arithmetic number, because the mean of its divisors is an integer number (46445595).

Almost surely, 2^1421142600 is an apocalyptic number.

1421142600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421142600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2229388560).

1421142600 is an abundant number, since it is smaller than the sum of its proper divisors (3037634520).

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

1421142600 is a wasteful number, since it uses less digits than its factorization.

1421142600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28639 (or 28630 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1421142600 is about 37698.0450421504. The cubic root of 1421142600 is about 1124.2922560822.

Adding to 1421142600 its reverse (62411241), we get a palindrome (1483553841).

The spelling of 1421142600 in words is "one billion, four hundred twenty-one million, one hundred forty-two thousand, six hundred".