20620412 has 6 divisors (see below), whose sum is σ = 36085728. Its totient is φ = 10310204.

The previous prime is 20620399. The next prime is 20620423. The reversal of 20620412 is 21402602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2577548 + ... + 2577555.

It is an arithmetic number, because the mean of its divisors is an integer number (6014288).

Almost surely, 2^20620412 is an apocalyptic number.

It is an amenable number.

20620412 is a deficient number, since it is larger than the sum of its proper divisors (15465316).

20620412 is a wasteful number, since it uses less digits than its factorization.

20620412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5155107 (or 5155105 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20620412 is about 4540.9703808768. The cubic root of 20620412 is about 274.2199913318.

The spelling of 20620412 in words is "twenty million, six hundred twenty thousand, four hundred twelve".