20924312 has 16 divisors (see below), whose sum is σ = 40586400. Its totient is φ = 10101280.

The previous prime is 20924311. The next prime is 20924317. The reversal of 20924312 is 21342902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20924311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44864 + ... + 45327.

It is an arithmetic number, because the mean of its divisors is an integer number (2536650).

Almost surely, 2^20924312 is an apocalyptic number.

It is an amenable number.

20924312 is a deficient number, since it is larger than the sum of its proper divisors (19662088).

20924312 is a wasteful number, since it uses less digits than its factorization.

20924312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90226 (or 90222 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 20924312 is about 4574.3100026124. The cubic root of 20924312 is about 275.5605623536.

It can be divided in two parts, 20 and 924312, that multiplied together give a triangular number (18486240 = T₆₀₈₀).

The spelling of 20924312 in words is "twenty million, nine hundred twenty-four thousand, three hundred twelve".