22701390 has 32 divisors (see below), whose sum is σ = 57352320. Its totient is φ = 5734944.

The previous prime is 22701389. The next prime is 22701397. The reversal of 22701390 is 9310722.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22701390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22701397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19344 + ... + 20483.

It is an arithmetic number, because the mean of its divisors is an integer number (1792260).

Almost surely, 2^22701390 is an apocalyptic number.

22701390 is an abundant number, since it is smaller than the sum of its proper divisors (34650930).

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

22701390 is a wasteful number, since it uses less digits than its factorization.

22701390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39856.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 22701390 is about 4764.5975695750. The cubic root of 22701390 is about 283.1505980491.

The spelling of 22701390 in words is "twenty-two million, seven hundred one thousand, three hundred ninety".