423431307 has 40 divisors (see below), whose sum is σ = 683630640. Its totient is φ = 259640640.

The previous prime is 423431299. The next prime is 423431353. The reversal of 423431307 is 703134324.

It is not a de Polignac number, because 423431307 - 2³ = 423431299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (423438307) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 398557 + ... + 399617.

It is an arithmetic number, because the mean of its divisors is an integer number (17090766).

Almost surely, 2^423431307 is an apocalyptic number.

423431307 is a deficient number, since it is larger than the sum of its proper divisors (260199333).

423431307 is a wasteful number, since it uses less digits than its factorization.

423431307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465 (or 1456 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 423431307 is about 20577.4465617093. The cubic root of 423431307 is about 750.9211242437.

The spelling of 423431307 in words is "four hundred twenty-three million, four hundred thirty-one thousand, three hundred seven".