22738390 has 16 divisors (see below), whose sum is σ = 40983408. Its totient is φ = 9083296.

The previous prime is 22738369. The next prime is 22738439. The reversal of 22738390 is 9383722.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14169 + ... + 15691.

It is an arithmetic number, because the mean of its divisors is an integer number (2561463).

Almost surely, 2^22738390 is an apocalyptic number.

22738390 is a deficient number, since it is larger than the sum of its proper divisors (18245018).

22738390 is a wasteful number, since it uses less digits than its factorization.

22738390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3023.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 22738390 is about 4768.4787930744. The cubic root of 22738390 is about 283.3043461310.

The spelling of 22738390 in words is "twenty-two million, seven hundred thirty-eight thousand, three hundred ninety".