20456025234 has 32 divisors (see below), whose sum is σ = 43558010496. Its totient is φ = 6382114560.

The previous prime is 20456025229. The next prime is 20456025263. The reversal of 20456025234 is 43252065402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20456025195 and 20456025204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 535542 + ... + 572465.

It is an arithmetic number, because the mean of its divisors is an integer number (1361187828).

Almost surely, 2^20456025234 is an apocalyptic number.

20456025234 is an abundant number, since it is smaller than the sum of its proper divisors (23101985262).

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

20456025234 is a wasteful number, since it uses less digits than its factorization.

20456025234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108210.

The product of its (nonzero) digits is 57600, while the sum is 33.

The spelling of 20456025234 in words is "twenty billion, four hundred fifty-six million, twenty-five thousand, two hundred thirty-four".