20940524 has 12 divisors (see below), whose sum is σ = 39977448. Its totient is φ = 9518400.

The previous prime is 20940499. The next prime is 20940533. The reversal of 20940524 is 42504902.

It is a junction number, because it is equal to n+sod(n) for n = 20940493 and 20940502.

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, 237917 + ... + 238004.

It is an arithmetic number, because the mean of its divisors is an integer number (3331454).

Almost surely, 2^20940524 is an apocalyptic number.

It is an amenable number.

20940524 is a deficient number, since it is larger than the sum of its proper divisors (19036924).

20940524 is a wasteful number, since it uses less digits than its factorization.

20940524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475936 (or 475934 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 20940524 is about 4576.0817300394. The cubic root of 20940524 is about 275.6317114005.

The spelling of 20940524 in words is "twenty million, nine hundred forty thousand, five hundred twenty-four".