426730923 has 20 divisors (see below), whose sum is σ = 674962200. Its totient is φ = 267751872.

The previous prime is 426730919. The next prime is 426730939. The reversal of 426730923 is 329037624.

It is a happy number.

It is not a de Polignac number, because 426730923 - 2² = 426730919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (426730943) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 153573 + ... + 156326.

It is an arithmetic number, because the mean of its divisors is an integer number (33748110).

Almost surely, 2^426730923 is an apocalyptic number.

426730923 is a deficient number, since it is larger than the sum of its proper divisors (248231277).

426730923 is a wasteful number, since it uses less digits than its factorization.

426730923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309928 (or 309919 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 426730923 is about 20657.4665193968. The cubic root of 426730923 is about 752.8666134108.

The spelling of 426730923 in words is "four hundred twenty-six million, seven hundred thirty thousand, nine hundred twenty-three".