1421829612 has 120 divisors (see below), whose sum is σ = 4497935904. Its totient is φ = 382330368.

The previous prime is 1421829587. The next prime is 1421829631. The reversal of 1421829612 is 2169281241.

1421829612 is a `hidden beast` number, since 1 + 4 + 2 + 18 + 29 + 612 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 39 ways as a sum of consecutive naturals, for example, 20118 + ... + 56994.

Almost surely, 2^1421829612 is an apocalyptic number.

1421829612 is a gapful number since it is divisible by the number (12) 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 1421829612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2248967952).

1421829612 is an abundant number, since it is smaller than the sum of its proper divisors (3076106292).

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

1421829612 is a wasteful number, since it uses less digits than its factorization.

1421829612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36917 (or 36906 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 1421829612 is about 37707.1559786733. The cubic root of 1421829612 is about 1124.4733962060.

The spelling of 1421829612 in words is "one billion, four hundred twenty-one million, eight hundred twenty-nine thousand, six hundred twelve".