22980278 has 4 divisors (see below), whose sum is σ = 34470420. Its totient is φ = 11490138.

The previous prime is 22980271. The next prime is 22980301. The reversal of 22980278 is 87208922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87208922 = 2 ⋅43604461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22980271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5745068 + ... + 5745071.

It is an arithmetic number, because the mean of its divisors is an integer number (8617605).

Almost surely, 2^22980278 is an apocalyptic number.

22980278 is a deficient number, since it is larger than the sum of its proper divisors (11490142).

22980278 is a wasteful number, since it uses less digits than its factorization.

22980278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11490141.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 22980278 is about 4793.7749217084. The cubic root of 22980278 is about 284.3053896036.

The spelling of 22980278 in words is "twenty-two million, nine hundred eighty thousand, two hundred seventy-eight".