22207390 has 16 divisors (see below), whose sum is σ = 42077520. Its totient is φ = 8415360.

The previous prime is 22207373. The next prime is 22207391. The reversal of 22207390 is 9370222.

It is a super-2 number, since 2×22207390² = 986336341224200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22207391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58251 + ... + 58630.

It is an arithmetic number, because the mean of its divisors is an integer number (2629845).

Almost surely, 2^22207390 is an apocalyptic number.

22207390 is a deficient number, since it is larger than the sum of its proper divisors (19870130).

22207390 is a wasteful number, since it uses less digits than its factorization.

22207390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116907.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 22207390 is about 4712.4717505785. The cubic root of 22207390 is about 281.0816579422.

The spelling of 22207390 in words is "twenty-two million, two hundred seven thousand, three hundred ninety".