20433633402 has 64 divisors (see below), whose sum is σ = 50796313344. Its totient is φ = 5335718400.

The previous prime is 20433633349. The next prime is 20433633427.

20433633402 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 20433633402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130123 + ... + 240414.

It is an arithmetic number, because the mean of its divisors is an integer number (793692396).

Almost surely, 2^20433633402 is an apocalyptic number.

20433633402 is an abundant number, since it is smaller than the sum of its proper divisors (30362679942).

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

20433633402 is a wasteful number, since it uses less digits than its factorization.

20433633402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370663.

The product of its (nonzero) digits is 31104, while the sum is 30.

The spelling of 20433633402 in words is "twenty billion, four hundred thirty-three million, six hundred thirty-three thousand, four hundred two".