20940528 has 40 divisors (see below), whose sum is σ = 61825408. Its totient is φ = 5982912.

The previous prime is 20940499. The next prime is 20940533. The reversal of 20940528 is 82504902.

It is a junction number, because it is equal to n+sod(n) for n = 20940495 and 20940504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30826 + ... + 31497.

Almost surely, 2^20940528 is an apocalyptic number.

20940528 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20940528 is an abundant number, since it is smaller than the sum of its proper divisors (40884880).

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

20940528 is a wasteful number, since it uses less digits than its factorization.

20940528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62341 (or 62335 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 20940528 is about 4576.0821670945. The cubic root of 20940528 is about 275.6317289506.

The spelling of 20940528 in words is "twenty million, nine hundred forty thousand, five hundred twenty-eight".