423746631 has 24 divisors (see below), whose sum is σ = 763112064. Its totient is φ = 220127760.

The previous prime is 423746621. The next prime is 423746633. The reversal of 423746631 is 136647324.

It is a happy number.

It is not a de Polignac number, because 423746631 - 2¹⁴ = 423730247 is a prime.

It is a super-2 number, since 2×423746631² = 359122414567700322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423746633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 305041 + ... + 306426.

It is an arithmetic number, because the mean of its divisors is an integer number (31796336).

Almost surely, 2^423746631 is an apocalyptic number.

423746631 is a deficient number, since it is larger than the sum of its proper divisors (339365433).

423746631 is a wasteful number, since it uses less digits than its factorization.

423746631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611491 (or 611488 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 423746631 is about 20585.1070193963. The cubic root of 423746631 is about 751.1074785168.

The spelling of 423746631 in words is "four hundred twenty-three million, seven hundred forty-six thousand, six hundred thirty-one".