45432621 has 12 divisors (see below), whose sum is σ = 70673148. Its totient is φ = 27958464.

The previous prime is 45432601. The next prime is 45432641. The reversal of 45432621 is 12623454.

45432621 is a `hidden beast` number, since 4 + 5 + 4 + 32 + 621 = 666.

It is an interprime number because it is at equal distance from previous prime (45432601) and next prime (45432641).

It can be written as a sum of positive squares in 2 ways, for example, as 23474025 + 21958596 = 4845^2 + 4686^2 .

It is not a de Polignac number, because 45432621 - 2⁷ = 45432493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45432601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194040 + ... + 194273.

It is an arithmetic number, because the mean of its divisors is an integer number (5889429).

Almost surely, 2^45432621 is an apocalyptic number.

It is an amenable number.

45432621 is a deficient number, since it is larger than the sum of its proper divisors (25240527).

45432621 is a wasteful number, since it uses less digits than its factorization.

45432621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388332 (or 388329 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 45432621 is about 6740.3724674531. The cubic root of 45432621 is about 356.8255391247.

The spelling of 45432621 in words is "forty-five million, four hundred thirty-two thousand, six hundred twenty-one".