234512555404440 has 32 divisors (see below), whose sum is σ = 703537666213680. Its totient is φ = 62536681441152.

The previous prime is 234512555404433. The next prime is 234512555404493. The reversal of 234512555404440 is 44404555215432.

It is a super-2 number, since 2×234512555404440² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 234512555404440.

It is a congruent number.

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, 977135647399 + ... + 977135647638.

Almost surely, 2^{234512555404440} is an apocalyptic number.

234512555404440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234512555404440 is an abundant number, since it is smaller than the sum of its proper divisors (469025110809240).

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

234512555404440 is a wasteful number, since it uses less digits than its factorization.

234512555404440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954271295051 (or 1954271295047 counting only the distinct ones).

The product of its (nonzero) digits is 7680000, while the sum is 48.

The spelling of 234512555404440 in words is "two hundred thirty-four trillion, five hundred twelve billion, five hundred fifty-five million, four hundred four thousand, four hundred forty".