45087420 has 48 divisors (see below), whose sum is σ = 144281088. Its totient is φ = 10305600.

The previous prime is 45087409. The next prime is 45087439. The reversal of 45087420 is 2478054.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53256 + ... + 54095.

It is an arithmetic number, because the mean of its divisors is an integer number (3005856).

Almost surely, 2^45087420 is an apocalyptic number.

It is an amenable number.

45087420 is an abundant number, since it is smaller than the sum of its proper divisors (99193668).

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

45087420 is a wasteful number, since it uses less digits than its factorization.

45087420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107370 (or 107368 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 45087420 is about 6714.7166730995. The cubic root of 45087420 is about 355.9195100612.

The spelling of 45087420 in words is "forty-five million, eighty-seven thousand, four hundred twenty".