45290280 has 64 divisors (see below), whose sum is σ = 155283840. Its totient is φ = 10351872.

The previous prime is 45290269. The next prime is 45290291. The reversal of 45290280 is 8209254.

45290280 = T₄₂₃ + T₄₂₄ + ... + T₇₀₂.

It is an interprime number because it is at equal distance from previous prime (45290269) and next prime (45290291).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26119 + ... + 27798.

It is an arithmetic number, because the mean of its divisors is an integer number (2426310).

Almost surely, 2^45290280 is an apocalyptic number.

45290280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45290280 is an abundant number, since it is smaller than the sum of its proper divisors (109993560).

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

45290280 is a wasteful number, since it uses less digits than its factorization.

45290280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53938 (or 53934 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 45290280 is about 6729.8053463678. The cubic root of 45290280 is about 356.4525029059.

The spelling of 45290280 in words is "forty-five million, two hundred ninety thousand, two hundred eighty".