45011280 has 40 divisors (see below), whose sum is σ = 139535712. Its totient is φ = 12002944.

The previous prime is 45011279. The next prime is 45011293. The reversal of 45011280 is 8211054.

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

It is a congruent number.

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, 93534 + ... + 94013.

Almost surely, 2^45011280 is an apocalyptic number.

45011280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45011280 is an abundant number, since it is smaller than the sum of its proper divisors (94524432).

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

45011280 is a wasteful number, since it uses less digits than its factorization.

45011280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187563 (or 187557 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 45011280 is about 6709.0446413778. The cubic root of 45011280 is about 355.7190477857.

The spelling of 45011280 in words is "forty-five million, eleven thousand, two hundred eighty".