45156040 has 16 divisors (see below), whose sum is σ = 101601180. Its totient is φ = 18062400.

The previous prime is 45156037. The next prime is 45156073. The reversal of 45156040 is 4065154.

It can be written as a sum of positive squares in 2 ways, for example, as 43322724 + 1833316 = 6582^2 + 1354^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45155996 and 45156014.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564411 + ... + 564490.

Almost surely, 2^45156040 is an apocalyptic number.

45156040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45156040 is an abundant number, since it is smaller than the sum of its proper divisors (56445140).

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

45156040 is a wasteful number, since it uses less digits than its factorization.

45156040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128912 (or 1128908 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 45156040 is about 6719.8244024677. The cubic root of 45156040 is about 356.0999803350.

The spelling of 45156040 in words is "forty-five million, one hundred fifty-six thousand, forty".