22251374 has 4 divisors (see below), whose sum is σ = 33377064. Its totient is φ = 11125686.

The previous prime is 22251371. The next prime is 22251391. The reversal of 22251374 is 47315222.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22251371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5562842 + ... + 5562845.

It is an arithmetic number, because the mean of its divisors is an integer number (8344266).

Almost surely, 2^22251374 is an apocalyptic number.

22251374 is a deficient number, since it is larger than the sum of its proper divisors (11125690).

22251374 is a wasteful number, since it uses less digits than its factorization.

22251374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11125689.

The product of its digits is 3360, while the sum is 26.

The square root of 22251374 is about 4717.1362074886. The cubic root of 22251374 is about 281.2671058567.

Adding to 22251374 its reverse (47315222), we get a palindrome (69566596).

The spelling of 22251374 in words is "twenty-two million, two hundred fifty-one thousand, three hundred seventy-four".