22077394 has 16 divisors (see below), whose sum is σ = 34546176. Its totient is φ = 10569600.

The previous prime is 22077389. The next prime is 22077397. The reversal of 22077394 is 49377022.

It is a super-2 number, since 2×22077394² = 974822651662472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22077397) 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, 4179 + ... + 7849.

It is an arithmetic number, because the mean of its divisors is an integer number (2159136).

Almost surely, 2^22077394 is an apocalyptic number.

22077394 is a deficient number, since it is larger than the sum of its proper divisors (12468782).

22077394 is a wasteful number, since it uses less digits than its factorization.

22077394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3801.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 22077394 is about 4698.6587447909. The cubic root of 22077394 is about 280.5321258362.

The spelling of 22077394 in words is "twenty-two million, seventy-seven thousand, three hundred ninety-four".