20770312 has 16 divisors (see below), whose sum is σ = 39243600. Its totient is φ = 10305360.

The previous prime is 20770307. The next prime is 20770327. The reversal of 20770312 is 21307702.

20770312 is nontrivially palindromic in base 13.

It is a super-4 number, since 4×20770312⁴ (a number of 30 digits) contains 4444 as substring.

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, 8862 + ... + 10957.

It is an arithmetic number, because the mean of its divisors is an integer number (2452725).

Almost surely, 2^20770312 is an apocalyptic number.

It is an amenable number.

20770312 is a deficient number, since it is larger than the sum of its proper divisors (18473288).

20770312 is a wasteful number, since it uses less digits than its factorization.

20770312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19956 (or 19952 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 20770312 is about 4557.4457758705. The cubic root of 20770312 is about 274.8828680229.

The spelling of 20770312 in words is "twenty million, seven hundred seventy thousand, three hundred twelve".