45078530 has 24 divisors (see below), whose sum is σ = 94389948. Its totient is φ = 15455328.

The previous prime is 45078529. The next prime is 45078547. The reversal of 45078530 is 3587054.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 45064369 + 14161 = 6713^2 + 119^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45509 + ... + 46488.

Almost surely, 2^45078530 is an apocalyptic number.

45078530 is an abundant number, since it is smaller than the sum of its proper divisors (49311418).

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

45078530 is a wasteful number, since it uses less digits than its factorization.

45078530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92018 (or 92011 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 45078530 is about 6714.0546616780. The cubic root of 45078530 is about 355.8961160086.

The spelling of 45078530 in words is "forty-five million, seventy-eight thousand, five hundred thirty".