413640557838 has 48 divisors (see below), whose sum is σ = 908444530656. Its totient is φ = 136010096640.

The previous prime is 413640557821. The next prime is 413640557839. The reversal of 413640557838 is 838755046314.

413640557838 is a `hidden beast` number, since 4 + 1 + 3 + 6 + 4 + 0 + 557 + 83 + 8 = 666.

It is a super-2 number, since 2×413640557838² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (413640557839) 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, 42418 + ... + 910538.

It is an arithmetic number, because the mean of its divisors is an integer number (18925927722).

Almost surely, 2^413640557838 is an apocalyptic number.

413640557838 is an abundant number, since it is smaller than the sum of its proper divisors (494803972818).

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

413640557838 is a wasteful number, since it uses less digits than its factorization.

413640557838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868489 (or 868486 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 413640557838 in words is "four hundred thirteen billion, six hundred forty million, five hundred fifty-seven thousand, eight hundred thirty-eight".