46165640 has 32 divisors (see below), whose sum is σ = 106683480. Its totient is φ = 17966592.

The previous prime is 46165627. The next prime is 46165657. The reversal of 46165640 is 4656164.

It can be written as a sum of positive squares in 4 ways, for example, as 43586404 + 2579236 = 6602^2 + 1606^2 .

It is a junction number, because it is equal to n+sod(n) for n = 46165597 and 46165606.

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, 14117 + ... + 17076.

Almost surely, 2^46165640 is an apocalyptic number.

46165640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

46165640 is an abundant number, since it is smaller than the sum of its proper divisors (60517840).

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

46165640 is a wasteful number, since it uses less digits than its factorization.

46165640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31241 (or 31237 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 46165640 is about 6794.5301529981. The cubic root of 46165640 is about 358.7343415246.

The spelling of 46165640 in words is "forty-six million, one hundred sixty-five thousand, six hundred forty".