29020872320 has 96 divisors (see below), whose sum is σ = 76258691460. Its totient is φ = 10553016320.

The previous prime is 29020872319. The next prime is 29020872367. The reversal of 29020872320 is 2327802092.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28875525184 + 145347136 = 169928^2 + 12056^2 .

It is a super-2 number, since 2×29020872320² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109937 + ... + 264816.

Almost surely, 2^29020872320 is an apocalyptic number.

29020872320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29020872320 is an abundant number, since it is smaller than the sum of its proper divisors (47237819140).

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

29020872320 is a wasteful number, since it uses less digits than its factorization.

29020872320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374794 (or 374771 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 29020872320 in words is "twenty-nine billion, twenty million, eight hundred seventy-two thousand, three hundred twenty".