623430492 has 48 divisors (see below), whose sum is σ = 1491800352. Its totient is φ = 202567680.

The previous prime is 623430473. The next prime is 623430497. The reversal of 623430492 is 294034326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623430497) 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, 78948 + ... + 86484.

It is an arithmetic number, because the mean of its divisors is an integer number (31079174).

Almost surely, 2^623430492 is an apocalyptic number.

It is an amenable number.

623430492 is an abundant number, since it is smaller than the sum of its proper divisors (868369860).

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

623430492 is a wasteful number, since it uses less digits than its factorization.

623430492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7718 (or 7716 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 623430492 is about 24968.5901083742. The cubic root of 623430492 is about 854.2716878407.

The spelling of 623430492 in words is "six hundred twenty-three million, four hundred thirty thousand, four hundred ninety-two".