20077312 has 18 divisors (see below), whose sum is σ = 40076708. Its totient is φ = 10038528.

The previous prime is 20077307. The next prime is 20077313. The reversal of 20077312 is 21377002.

It is not an unprimeable number, because it can be changed into a prime (20077313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38958 + ... + 39469.

Almost surely, 2^20077312 is an apocalyptic number.

It is an amenable number.

20077312 is a deficient number, since it is larger than the sum of its proper divisors (19999396).

20077312 is an frugal number, since it uses more digits than its factorization.

20077312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78443 (or 78429 counting only the distinct ones).

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

The square root of 20077312 is about 4480.7713621652. The cubic root of 20077312 is about 271.7910737031.

The spelling of 20077312 in words is "twenty million, seventy-seven thousand, three hundred twelve".