22996278 has 16 divisors (see below), whose sum is σ = 51102960. Its totient is φ = 7665408.

The previous prime is 22996249. The next prime is 22996307. The reversal of 22996278 is 87269922.

It is an interprime number because it is at equal distance from previous prime (22996249) and next prime (22996307).

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, 212875 + ... + 212982.

It is an arithmetic number, because the mean of its divisors is an integer number (3193935).

Almost surely, 2^22996278 is an apocalyptic number.

22996278 is an abundant number, since it is smaller than the sum of its proper divisors (28106682).

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

22996278 is a wasteful number, since it uses less digits than its factorization.

22996278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425868 (or 425862 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 22996278 is about 4795.4434622879. The cubic root of 22996278 is about 284.3713567621.

The spelling of 22996278 in words is "twenty-two million, nine hundred ninety-six thousand, two hundred seventy-eight".