45012880 has 40 divisors (see below), whose sum is σ = 114171264. Its totient is φ = 16368000.

The previous prime is 45012859. The next prime is 45012893. The reversal of 45012880 is 8821054.

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

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

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, 24696 + ... + 26455.

Almost surely, 2^45012880 is an apocalyptic number.

45012880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45012880 is an abundant number, since it is smaller than the sum of its proper divisors (69158384).

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

45012880 is a wasteful number, since it uses less digits than its factorization.

45012880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51175 (or 51169 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 45012880 is about 6709.1638823329. The cubic root of 45012880 is about 355.7232626087.

It can be divided in two parts, 4501 and 2880, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 45012880 in words is "forty-five million, twelve thousand, eight hundred eighty".