623253042 has 20 divisors (see below), whose sum is σ = 1396548846. Its totient is φ = 207750960.

The previous prime is 623253017. The next prime is 623253053. The reversal of 623253042 is 240352326.

623253042 is a `hidden beast` number, since 62 + 32 + 530 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 585688401 + 37564641 = 24201^2 + 6129^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 623252997 and 623253015.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1923459 + ... + 1923782.

Almost surely, 2^623253042 is an apocalyptic number.

623253042 is an abundant number, since it is smaller than the sum of its proper divisors (773295804).

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

623253042 is a wasteful number, since it uses less digits than its factorization.

623253042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847255 (or 3847246 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 623253042 is about 24965.0363909208. The cubic root of 623253042 is about 854.1906283386.

The spelling of 623253042 in words is "six hundred twenty-three million, two hundred fifty-three thousand, forty-two".