45453900 has 72 divisors (see below), whose sum is σ = 132880384. Its totient is φ = 11995200.

The previous prime is 45453857. The next prime is 45453901. The reversal of 45453900 is 935454.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45453901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30165 + ... + 31635.

Almost surely, 2^45453900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45453900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66440192).

45453900 is an abundant number, since it is smaller than the sum of its proper divisors (87426484).

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

45453900 is a wasteful number, since it uses less digits than its factorization.

45453900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591 (or 1584 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 45453900 is about 6741.9507562723. The cubic root of 45453900 is about 356.8812384980.

The spelling of 45453900 in words is "forty-five million, four hundred fifty-three thousand, nine hundred".