46157840 has 40 divisors (see below), whose sum is σ = 112968960. Its totient is φ = 17490816.

The previous prime is 46157789. The next prime is 46157857. The reversal of 46157840 is 4875164.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 46157840.

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, 13664 + ... + 16703.

It is an arithmetic number, because the mean of its divisors is an integer number (2824224).

Almost surely, 2^46157840 is an apocalyptic number.

46157840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

46157840 is an abundant number, since it is smaller than the sum of its proper divisors (66811120).

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

46157840 is a wasteful number, since it uses less digits than its factorization.

46157840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30399 (or 30393 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 46157840 is about 6793.9561376270. The cubic root of 46157840 is about 358.7141368481.

The spelling of 46157840 in words is "forty-six million, one hundred fifty-seven thousand, eight hundred forty".