22378069 has 16 divisors (see below), whose sum is σ = 27260928. Its totient is φ = 17932032.

The previous prime is 22378009. The next prime is 22378073. The reversal of 22378069 is 96087322.

It is a cyclic number.

It is not a de Polignac number, because 22378069 - 2¹¹ = 22376021 is a prime.

It is a super-2 number, since 2×22378069² = 1001555944337522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22378009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20044 + ... + 21130.

It is an arithmetic number, because the mean of its divisors is an integer number (1703808).

Almost surely, 2^22378069 is an apocalyptic number.

It is an amenable number.

22378069 is a deficient number, since it is larger than the sum of its proper divisors (4882859).

22378069 is a wasteful number, since it uses less digits than its factorization.

22378069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 22378069 is about 4730.5463743631. The cubic root of 22378069 is about 281.7999226306.

The spelling of 22378069 in words is "twenty-two million, three hundred seventy-eight thousand, sixty-nine".