45402432 has 28 divisors (see below), whose sum is σ = 120127776. Its totient is φ = 15134080.

The previous prime is 45402407. The next prime is 45402439. The reversal of 45402432 is 23420454.

It is a super-2 number, since 2×45402432² = 4122761663029248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45402439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118044 + ... + 118427.

Almost surely, 2^45402432 is an apocalyptic number.

It is an amenable number.

45402432 is an abundant number, since it is smaller than the sum of its proper divisors (74725344).

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

45402432 is a wasteful number, since it uses less digits than its factorization.

45402432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236486 (or 236476 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 45402432 is about 6738.1326790143. The cubic root of 45402432 is about 356.7464873127.

Adding to 45402432 its reverse (23420454), we get a palindrome (68822886).

The spelling of 45402432 in words is "forty-five million, four hundred two thousand, four hundred thirty-two".