20297029000 has 32 divisors (see below), whose sum is σ = 47495050200. Its totient is φ = 8118811200.

The previous prime is 20297028953. The next prime is 20297029057. The reversal of 20297029000 is 92079202.

It can be written as a sum of positive squares in 4 ways, for example, as 12624320164 + 7672708836 = 112358^2 + 87594^2 .

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, 10147515 + ... + 10149514.

Almost surely, 2^20297029000 is an apocalyptic number.

20297029000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20297029000 is an abundant number, since it is smaller than the sum of its proper divisors (27198021200).

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

20297029000 is a wasteful number, since it uses less digits than its factorization.

20297029000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20297050 (or 20297036 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The spelling of 20297029000 in words is "twenty billion, two hundred ninety-seven million, twenty-nine thousand".