405624416 has 12 divisors (see below), whose sum is σ = 798573132. Its totient is φ = 202812192.

The previous prime is 405624413. The next prime is 405624419. The reversal of 405624416 is 614426504.

It is an interprime number because it is at equal distance from previous prime (405624413) and next prime (405624419).

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 12675763 = 405624416 / (4 + 0 + 5 + 6 + 2 + 4 + 4 + 1 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405624413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6337850 + ... + 6337913.

It is an arithmetic number, because the mean of its divisors is an integer number (66547761).

Almost surely, 2^405624416 is an apocalyptic number.

It is an amenable number.

405624416 is a deficient number, since it is larger than the sum of its proper divisors (392948716).

405624416 is a wasteful number, since it uses less digits than its factorization.

405624416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12675773 (or 12675765 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 405624416 is about 20140.1195627037. The cubic root of 405624416 is about 740.2436597176.

The spelling of 405624416 in words is "four hundred five million, six hundred twenty-four thousand, four hundred sixteen".