431650945 has 16 divisors (see below), whose sum is σ = 574338240. Its totient is φ = 308779200.

The previous prime is 431650943. The next prime is 431650951. The reversal of 431650945 is 549056134.

431650945 is nontrivially palindromic in base 12.

It is not a de Polignac number, because 431650945 - 2¹ = 431650943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (431650943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60975 + ... + 67684.

It is an arithmetic number, because the mean of its divisors is an integer number (35896140).

Almost surely, 2^431650945 is an apocalyptic number.

It is an amenable number.

431650945 is a deficient number, since it is larger than the sum of its proper divisors (142687295).

431650945 is a wasteful number, since it uses less digits than its factorization.

431650945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128736.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 431650945 is about 20776.2110357014. The cubic root of 431650945 is about 755.7489724171.

The spelling of 431650945 in words is "four hundred thirty-one million, six hundred fifty thousand, nine hundred forty-five".