20196416 has 14 divisors (see below), whose sum is σ = 40077390. Its totient is φ = 10098176.

The previous prime is 20196409. The next prime is 20196427. The reversal of 20196416 is 61469102.

It can be written as a sum of positive squares in only one way, i.e., 15178816 + 5017600 = 3896^2 + 2240^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157721 + ... + 157848.

Almost surely, 2^20196416 is an apocalyptic number.

It is an amenable number.

20196416 is a deficient number, since it is larger than the sum of its proper divisors (19880974).

20196416 is an equidigital number, since it uses as much as digits as its factorization.

20196416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315581 (or 315571 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 20196416 is about 4494.0422783948. The cubic root of 20196416 is about 272.3274602843.

The spelling of 20196416 in words is "twenty million, one hundred ninety-six thousand, four hundred sixteen".