20750492 has 24 divisors (see below), whose sum is σ = 42184800. Its totient is φ = 8746560.

The previous prime is 20750479. The next prime is 20750537. The reversal of 20750492 is 29405702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4367 + ... + 7782.

It is an arithmetic number, because the mean of its divisors is an integer number (1757700).

Almost surely, 2^20750492 is an apocalyptic number.

It is an amenable number.

20750492 is an abundant number, since it is smaller than the sum of its proper divisors (21434308).

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

20750492 is a wasteful number, since it uses less digits than its factorization.

20750492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12221 (or 12219 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 20750492 is about 4555.2707932679. The cubic root of 20750492 is about 274.7954048474.

The spelling of 20750492 in words is "twenty million, seven hundred fifty thousand, four hundred ninety-two".