22987378 has 8 divisors (see below), whose sum is σ = 36295920. Its totient is φ = 10888740.

The previous prime is 22987331. The next prime is 22987379. The reversal of 22987378 is 87378922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22987379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302428 + ... + 302503.

It is an arithmetic number, because the mean of its divisors is an integer number (4536990).

Almost surely, 2^22987378 is an apocalyptic number.

22987378 is a deficient number, since it is larger than the sum of its proper divisors (13308542).

22987378 is a wasteful number, since it uses less digits than its factorization.

22987378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604952.

The product of its digits is 338688, while the sum is 46.

The square root of 22987378 is about 4794.5154082556. The cubic root of 22987378 is about 284.3346663080.

The spelling of 22987378 in words is "twenty-two million, nine hundred eighty-seven thousand, three hundred seventy-eight".