20624068 has 6 divisors (see below), whose sum is σ = 36092126. Its totient is φ = 10312032.

The previous prime is 20624041. The next prime is 20624069. The reversal of 20624068 is 86042602.

It can be written as a sum of positive squares in only one way, i.e., 17960644 + 2663424 = 4238^2 + 1632^2 .

It is not an unprimeable number, because it can be changed into a prime (20624069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2578005 + ... + 2578012.

Almost surely, 2^20624068 is an apocalyptic number.

It is an amenable number.

20624068 is a deficient number, since it is larger than the sum of its proper divisors (15468058).

20624068 is a wasteful number, since it uses less digits than its factorization.

20624068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5156021 (or 5156019 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 20624068 is about 4541.3729201641. The cubic root of 20624068 is about 274.2361967798.

The spelling of 20624068 in words is "twenty million, six hundred twenty-four thousand, sixty-eight".