20741936 has 10 divisors (see below), whose sum is σ = 40187532. Its totient is φ = 10370960.

The previous prime is 20741879. The next prime is 20741947. The reversal of 20741936 is 63914702.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648170 + ... + 648201.

Almost surely, 2^20741936 is an apocalyptic number.

It is an amenable number.

20741936 is a deficient number, since it is larger than the sum of its proper divisors (19445596).

20741936 is a wasteful number, since it uses less digits than its factorization.

20741936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296379 (or 1296373 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 20741936 is about 4554.3315645658. The cubic root of 20741936 is about 274.7576310811.

The spelling of 20741936 in words is "twenty million, seven hundred forty-one thousand, nine hundred thirty-six".