1000021032 has 32 divisors (see below), whose sum is σ = 2777836800. Its totient is φ = 333340272.

The previous prime is 1000021027. The next prime is 1000021069. The reversal of 1000021032 is 2301200001.

It is a happy number.

1000021032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2314648 + ... + 2315079.

It is an arithmetic number, because the mean of its divisors is an integer number (86807400).

Almost surely, 2^1000021032 is an apocalyptic number.

1000021032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000021032 is an abundant number, since it is smaller than the sum of its proper divisors (1777815768).

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

1000021032 is a wasteful number, since it uses less digits than its factorization.

1000021032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4629742 (or 4629732 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1000021032 is about 31623.1091450540. The cubic root of 1000021032 is about 1000.0070106175.

Adding to 1000021032 its reverse (2301200001), we get a palindrome (3301221033).

The spelling of 1000021032 in words is "one billion, twenty-one thousand, thirty-two".