20826260 has 48 divisors (see below), whose sum is σ = 53832576. Its totient is φ = 6590592.

The previous prime is 20826257. The next prime is 20826271. The reversal of 20826260 is 6262802.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3902 + ... + 7541.

It is an arithmetic number, because the mean of its divisors is an integer number (1121512).

Almost surely, 2^20826260 is an apocalyptic number.

20826260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20826260 is an abundant number, since it is smaller than the sum of its proper divisors (33006316).

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

20826260 is a wasteful number, since it uses less digits than its factorization.

20826260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11472 (or 11470 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 20826260 is about 4563.5797352517. The cubic root of 20826260 is about 275.1294597068.

The spelling of 20826260 in words is "twenty million, eight hundred twenty-six thousand, two hundred sixty".