20836948 has 24 divisors (see below), whose sum is σ = 39906720. Its totient is φ = 9441120.

The previous prime is 20836931. The next prime is 20836967. The reversal of 20836948 is 84963802.

It is a self number, because there is not a number n which added to its sum of digits gives 20836948.

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, 18958 + ... + 20026.

It is an arithmetic number, because the mean of its divisors is an integer number (1662780).

Almost surely, 2^20836948 is an apocalyptic number.

It is an amenable number.

20836948 is a deficient number, since it is larger than the sum of its proper divisors (19069772).

20836948 is a wasteful number, since it uses less digits than its factorization.

20836948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527 (or 1525 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 20836948 is about 4564.7505955967. The cubic root of 20836948 is about 275.1765169761.

The spelling of 20836948 in words is "twenty million, eight hundred thirty-six thousand, nine hundred forty-eight".