423667494 has 48 divisors (see below), whose sum is σ = 944049600. Its totient is φ = 137249280.

The previous prime is 423667487. The next prime is 423667507. The reversal of 423667494 is 494766324.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124374 + ... + 127734.

It is an arithmetic number, because the mean of its divisors is an integer number (19667700).

Almost surely, 2^423667494 is an apocalyptic number.

423667494 is an abundant number, since it is smaller than the sum of its proper divisors (520382106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423667494 is a wasteful number, since it uses less digits than its factorization.

423667494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565 (or 3562 counting only the distinct ones).

The product of its digits is 870912, while the sum is 45.

The square root of 423667494 is about 20583.1847390048. The cubic root of 423667494 is about 751.0607177965.

The spelling of 423667494 in words is "four hundred twenty-three million, six hundred sixty-seven thousand, four hundred ninety-four".