22158270 has 24 divisors (see below), whose sum is σ = 57611736. Its totient is φ = 5908848.

The previous prime is 22158247. The next prime is 22158271. The reversal of 22158270 is 7285122.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22158271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123012 + ... + 123191.

It is an arithmetic number, because the mean of its divisors is an integer number (2400489).

Almost surely, 2^22158270 is an apocalyptic number.

22158270 is an abundant number, since it is smaller than the sum of its proper divisors (35453466).

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

22158270 is a wasteful number, since it uses less digits than its factorization.

22158270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246216 (or 246213 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 22158270 is about 4707.2571631471. The cubic root of 22158270 is about 280.8742656708.

The spelling of 22158270 in words is "twenty-two million, one hundred fifty-eight thousand, two hundred seventy".