624650401 has 8 divisors (see below), whose sum is σ = 652466880. Its totient is φ = 597252432.

The previous prime is 624650387. The next prime is 624650407. The reversal of 624650401 is 104056426.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 624650401 - 2²¹ = 622553249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 624650401.

It is not an unprimeable number, because it can be changed into a prime (624650407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101575 + ... + 107548.

It is an arithmetic number, because the mean of its divisors is an integer number (81558360).

Almost surely, 2^624650401 is an apocalyptic number.

It is an amenable number.

624650401 is a deficient number, since it is larger than the sum of its proper divisors (27816479).

624650401 is a wasteful number, since it uses less digits than its factorization.

624650401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209255.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 624650401 is about 24993.0070419708. The cubic root of 624650401 is about 854.8285287042.

The spelling of 624650401 in words is "six hundred twenty-four million, six hundred fifty thousand, four hundred one".