623157234 has 16 divisors (see below), whose sum is σ = 1424359488. Its totient is φ = 178044912.

The previous prime is 623157229. The next prime is 623157259. The reversal of 623157234 is 432751326.

It is a junction number, because it is equal to n+sod(n) for n = 623157195 and 623157204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7418497 + ... + 7418580.

It is an arithmetic number, because the mean of its divisors is an integer number (89022468).

Almost surely, 2^623157234 is an apocalyptic number.

623157234 is an abundant number, since it is smaller than the sum of its proper divisors (801202254).

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

623157234 is a wasteful number, since it uses less digits than its factorization.

623157234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14837089.

The product of its digits is 30240, while the sum is 33.

The square root of 623157234 is about 24963.1174735849. The cubic root of 623157234 is about 854.1468566632.

The spelling of 623157234 in words is "six hundred twenty-three million, one hundred fifty-seven thousand, two hundred thirty-four".