22397470 has 8 divisors (see below), whose sum is σ = 40315464. Its totient is φ = 8958984.

The previous prime is 22397461. The next prime is 22397471. The reversal of 22397470 is 7479322.

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 (22397471) 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, 1119864 + ... + 1119883.

It is an arithmetic number, because the mean of its divisors is an integer number (5039433).

Almost surely, 2^22397470 is an apocalyptic number.

22397470 is a deficient number, since it is larger than the sum of its proper divisors (17917994).

22397470 is a wasteful number, since it uses less digits than its factorization.

22397470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239754.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 22397470 is about 4732.5965388991. The cubic root of 22397470 is about 281.8813359867.

The spelling of 22397470 in words is "twenty-two million, three hundred ninety-seven thousand, four hundred seventy".