45705431 has 12 divisors (see below), whose sum is σ = 49293720. Its totient is φ = 42260400.

The previous prime is 45705427. The next prime is 45705463. The reversal of 45705431 is 13450754.

It is not a de Polignac number, because 45705431 - 2² = 45705427 is a prime.

It is a super-2 number, since 2×45705431² = 4177972845791522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45705394 and 45705403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45705731) 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, 34481 + ... + 35781.

It is an arithmetic number, because the mean of its divisors is an integer number (4107810).

Almost surely, 2^45705431 is an apocalyptic number.

45705431 is a deficient number, since it is larger than the sum of its proper divisors (3588289).

45705431 is a wasteful number, since it uses less digits than its factorization.

45705431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406 (or 1363 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 45705431 is about 6760.5791911640. The cubic root of 45705431 is about 357.5383263717.

It can be divided in two parts, 4570 and 5431, that added together give a palindrome (10001).

The spelling of 45705431 in words is "forty-five million, seven hundred five thousand, four hundred thirty-one".