21032442332 has 24 divisors (see below), whose sum is σ = 40158944112. Its totient is φ = 9558748800.

The previous prime is 21032442289. The next prime is 21032442367. The reversal of 21032442332 is 23324423012.

It is a congruent number.

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, 289478 + ... + 354770.

It is an arithmetic number, because the mean of its divisors is an integer number (1673289338).

Almost surely, 2^21032442332 is an apocalyptic number.

21032442332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21032442332 is a deficient number, since it is larger than the sum of its proper divisors (19126501780).

21032442332 is a wasteful number, since it uses less digits than its factorization.

21032442332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72629 (or 72627 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 21032442332 its reverse (23324423012), we get a palindrome (44356865344).

It can be divided in two parts, 21032 and 442332, that added together give a palindrome (463364).

The spelling of 21032442332 in words is "twenty-one billion, thirty-two million, four hundred forty-two thousand, three hundred thirty-two".