40234233852 has 72 divisors (see below), whose sum is σ = 103368466656. Its totient is φ = 13193478144.

The previous prime is 40234233847. The next prime is 40234233859. The reversal of 40234233852 is 25833243204.

40234233852 is a `hidden beast` number, since 40 + 234 + 2 + 3 + 385 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40234233859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 548668 + ... + 617660.

It is an arithmetic number, because the mean of its divisors is an integer number (1435673148).

Almost surely, 2^40234233852 is an apocalyptic number.

It is an amenable number.

40234233852 is an abundant number, since it is smaller than the sum of its proper divisors (63134232804).

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

40234233852 is a wasteful number, since it uses less digits than its factorization.

40234233852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69267 (or 69262 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The spelling of 40234233852 in words is "forty billion, two hundred thirty-four million, two hundred thirty-three thousand, eight hundred fifty-two".