45731432 has 8 divisors (see below), whose sum is σ = 85746450. Its totient is φ = 22865712.

The previous prime is 45731419. The next prime is 45731449. The reversal of 45731432 is 23413754.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 38365636 + 7365796 = 6194^2 + 2714^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 45731395 and 45731404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2858207 + ... + 2858222.

Almost surely, 2^45731432 is an apocalyptic number.

It is an amenable number.

45731432 is a deficient number, since it is larger than the sum of its proper divisors (40015018).

45731432 is a wasteful number, since it uses less digits than its factorization.

45731432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5716435 (or 5716431 counting only the distinct ones).

The product of its digits is 10080, while the sum is 29.

The square root of 45731432 is about 6762.5019038814. The cubic root of 45731432 is about 357.6061125664.

The spelling of 45731432 in words is "forty-five million, seven hundred thirty-one thousand, four hundred thirty-two".