23420826 has 96 divisors (see below), whose sum is σ = 62008128. Its totient is φ = 6531840.

The previous prime is 23420819. The next prime is 23420867. The reversal of 23420826 is 62802432.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 23420826.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69330 + ... + 69666.

It is an arithmetic number, because the mean of its divisors is an integer number (645918).

Almost surely, 2^23420826 is an apocalyptic number.

23420826 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 23420826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31004064).

23420826 is an abundant number, since it is smaller than the sum of its proper divisors (38587302).

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

23420826 is a wasteful number, since it uses less digits than its factorization.

23420826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 23420826 is about 4839.5067930524. The cubic root of 23420826 is about 286.1106797730.

The spelling of 23420826 in words is "twenty-three million, four hundred twenty thousand, eight hundred twenty-six".