45475000 has 96 divisors (see below), whose sum is σ = 113898960. Its totient is φ = 16960000.

The previous prime is 45474997. The next prime is 45475019. The reversal of 45475000 is 57454.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 424947 + ... + 425053.

Almost surely, 2^45475000 is an apocalyptic number.

45475000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45475000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56949480).

45475000 is an abundant number, since it is smaller than the sum of its proper divisors (68423960).

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

45475000 is a wasteful number, since it uses less digits than its factorization.

45475000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 45475000 is about 6743.5154037045. The cubic root of 45475000 is about 356.9364521631.

The spelling of 45475000 in words is "forty-five million, four hundred seventy-five thousand".