624545426 has 4 divisors (see below), whose sum is σ = 936818142. Its totient is φ = 312272712.

The previous prime is 624545419. The next prime is 624545429.

624545426 is nontrivially palindromic in base 10.

624545426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 473280025 + 151265401 = 21755^2 + 12299^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 624545426.

It is not an unprimeable number, because it can be changed into a prime (624545429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156136355 + ... + 156136358.

Almost surely, 2^624545426 is an apocalyptic number.

624545426 is a deficient number, since it is larger than the sum of its proper divisors (312272716).

624545426 is a wasteful number, since it uses less digits than its factorization.

624545426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312272715.

The product of its digits is 230400, while the sum is 38.

The square root of 624545426 is about 24990.9068662984. The cubic root of 624545426 is about 854.7806402362.

The spelling of 624545426 in words is "six hundred twenty-four million, five hundred forty-five thousand, four hundred twenty-six".