22250078 has 8 divisors (see below), whose sum is σ = 33575472. Its totient is φ = 11058256.

The previous prime is 22250077. The next prime is 22250087. The reversal of 22250078 is 87005222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22250077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32975 + ... + 33642.

It is an arithmetic number, because the mean of its divisors is an integer number (4196934).

Almost surely, 2^22250078 is an apocalyptic number.

22250078 is a deficient number, since it is larger than the sum of its proper divisors (11325394).

22250078 is a wasteful number, since it uses less digits than its factorization.

22250078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66786.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 22250078 is about 4716.9988340045. The cubic root of 22250078 is about 281.2616450816.

The spelling of 22250078 in words is "twenty-two million, two hundred fifty thousand, seventy-eight".