20396469402 has 24 divisors (see below), whose sum is σ = 44315462880. Its totient is φ = 6779882760.

The previous prime is 20396469361. The next prime is 20396469421. The reversal of 20396469402 is 20496469302.

20396469402 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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, 1571724 + ... + 1584647.

It is an arithmetic number, because the mean of its divisors is an integer number (1846477620).

Almost surely, 2^20396469402 is an apocalyptic number.

20396469402 is an abundant number, since it is smaller than the sum of its proper divisors (23918993478).

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

20396469402 is a wasteful number, since it uses less digits than its factorization.

20396469402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156738 (or 3156735 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 20396469402 in words is "twenty billion, three hundred ninety-six million, four hundred sixty-nine thousand, four hundred two".