20477196 has 36 divisors (see below), whose sum is σ = 52105872. Its totient is φ = 6780384.

The previous prime is 20477167. The next prime is 20477203. The reversal of 20477196 is 69177402.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20477196.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3841 + ... + 7463.

Almost surely, 2^20477196 is an apocalyptic number.

It is an amenable number.

20477196 is an abundant number, since it is smaller than the sum of its proper divisors (31628676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20477196 is a wasteful number, since it uses less digits than its factorization.

20477196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3790 (or 3785 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 20477196 is about 4525.1735878306. The cubic root of 20477196 is about 273.5836645115.

The spelling of 20477196 in words is "twenty million, four hundred seventy-seven thousand, one hundred ninety-six".