26829920 has 48 divisors (see below), whose sum is σ = 68266800. Its totient is φ = 9905664.

The previous prime is 26829877. The next prime is 26829931. The reversal of 26829920 is 2992862.

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, 4370 + ... + 8529.

It is an arithmetic number, because the mean of its divisors is an integer number (1422225).

Almost surely, 2^26829920 is an apocalyptic number.

26829920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26829920 is an abundant number, since it is smaller than the sum of its proper divisors (41436880).

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

26829920 is a wasteful number, since it uses less digits than its factorization.

26829920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12927 (or 12919 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 26829920 is about 5179.7606122291. The cubic root of 26829920 is about 299.3687467368.

The spelling of 26829920 in words is "twenty-six million, eight hundred twenty-nine thousand, nine hundred twenty".