40351383828 has 72 divisors (see below), whose sum is σ = 116916817472. Its totient is φ = 11494732032.

The previous prime is 40351383823. The next prime is 40351383847. The reversal of 40351383828 is 82838315304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40351383823) 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, 152650 + ... + 322497.

Almost surely, 2^40351383828 is an apocalyptic number.

It is an amenable number.

40351383828 is an abundant number, since it is smaller than the sum of its proper divisors (76565433644).

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

40351383828 is a wasteful number, since it uses less digits than its factorization.

40351383828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475501 (or 475496 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 40351383828 in words is "forty billion, three hundred fifty-one million, three hundred eighty-three thousand, eight hundred twenty-eight".