20770476 has 12 divisors (see below), whose sum is σ = 48464472. Its totient is φ = 6923488.

The previous prime is 20770459. The next prime is 20770489. The reversal of 20770476 is 67407702.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 865425 + ... + 865448.

It is an arithmetic number, because the mean of its divisors is an integer number (4038706).

Almost surely, 2^20770476 is an apocalyptic number.

It is an amenable number.

20770476 is an abundant number, since it is smaller than the sum of its proper divisors (27693996).

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

20770476 is a wasteful number, since it uses less digits than its factorization.

20770476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730880 (or 1730878 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 33.

The square root of 20770476 is about 4557.4637683694. The cubic root of 20770476 is about 274.8835915022.

The spelling of 20770476 in words is "twenty million, seven hundred seventy thousand, four hundred seventy-six".