624686426 has 32 divisors (see below), whose sum is σ = 1170503040. Its totient is φ = 243435456.

The previous prime is 624686423. The next prime is 624686431.

624686426 is nontrivially palindromic in base 10.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (624686423) 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, 13421 + ... + 37808.

It is an arithmetic number, because the mean of its divisors is an integer number (36578220).

Almost surely, 2^624686426 is an apocalyptic number.

624686426 is a deficient number, since it is larger than the sum of its proper divisors (545816614).

624686426 is a wasteful number, since it uses less digits than its factorization.

624686426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51318.

The product of its digits is 663552, while the sum is 44.

The square root of 624686426 is about 24993.7277331734. The cubic root of 624686426 is about 854.8449616858.

The spelling of 624686426 in words is "six hundred twenty-four million, six hundred eighty-six thousand, four hundred twenty-six".