22247378 has 4 divisors (see below), whose sum is σ = 33371070. Its totient is φ = 11123688.

The previous prime is 22247363. The next prime is 22247387. The reversal of 22247378 is 87374222.

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

It can be written as a sum of positive squares in only one way, i.e., 21780889 + 466489 = 4667^2 + 683^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561843 + ... + 5561846.

Almost surely, 2^22247378 is an apocalyptic number.

22247378 is a deficient number, since it is larger than the sum of its proper divisors (11123692).

22247378 is a wasteful number, since it uses less digits than its factorization.

22247378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11123691.

The product of its digits is 37632, while the sum is 35.

The square root of 22247378 is about 4716.7126263956. The cubic root of 22247378 is about 281.2502677858.

The spelling of 22247378 in words is "twenty-two million, two hundred forty-seven thousand, three hundred seventy-eight".