40234405656 has 16 divisors (see below), whose sum is σ = 100586014200. Its totient is φ = 13411468544.

The previous prime is 40234405649. The next prime is 40234405663. The reversal of 40234405656 is 65650443204.

It is an interprime number because it is at equal distance from previous prime (40234405649) and next prime (40234405663).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838216761 + ... + 838216808.

Almost surely, 2^40234405656 is an apocalyptic number.

It is an amenable number.

40234405656 is an abundant number, since it is smaller than the sum of its proper divisors (60351608544).

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

40234405656 is a wasteful number, since it uses less digits than its factorization.

40234405656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676433578 (or 1676433574 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 40234405656 in words is "forty billion, two hundred thirty-four million, four hundred five thousand, six hundred fifty-six".