22401370 has 8 divisors (see below), whose sum is σ = 40322484. Its totient is φ = 8960544.

The previous prime is 22401349. The next prime is 22401371. The reversal of 22401370 is 7310422.

It can be written as a sum of positive squares in 2 ways, for example, as 22401289 + 81 = 4733^2 + 9^2 .

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 (22401371) 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, 1120059 + ... + 1120078.

Almost surely, 2^22401370 is an apocalyptic number.

22401370 is a deficient number, since it is larger than the sum of its proper divisors (17921114).

22401370 is a wasteful number, since it uses less digits than its factorization.

22401370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240144.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 22401370 is about 4733.0085569329. The cubic root of 22401370 is about 281.8976960698.

Adding to 22401370 its reverse (7310422), we get a palindrome (29711792).

The spelling of 22401370 in words is "twenty-two million, four hundred one thousand, three hundred seventy".