45431842 has 8 divisors (see below), whose sum is σ = 69081516. Its totient is φ = 22404672.

The previous prime is 45431839. The next prime is 45431857. The reversal of 45431842 is 24813454.

It can be written as a sum of positive squares in 2 ways, for example, as 43970161 + 1461681 = 6631^2 + 1209^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155443 + ... + 155734.

Almost surely, 2^45431842 is an apocalyptic number.

45431842 is a deficient number, since it is larger than the sum of its proper divisors (23649674).

45431842 is a wasteful number, since it uses less digits than its factorization.

45431842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311252.

The product of its digits is 15360, while the sum is 31.

The square root of 45431842 is about 6740.3146810813. The cubic root of 45431842 is about 356.8234997040.

The spelling of 45431842 in words is "forty-five million, four hundred thirty-one thousand, eight hundred forty-two".