22247670 has 64 divisors (see below), whose sum is σ = 58682880. Its totient is φ = 5372928.

The previous prime is 22247653. The next prime is 22247671. The reversal of 22247670 is 7674222.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22247671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12262 + ... + 13958.

It is an arithmetic number, because the mean of its divisors is an integer number (916920).

Almost surely, 2^22247670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22247670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29341440).

22247670 is an abundant number, since it is smaller than the sum of its proper divisors (36435210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22247670 is a wasteful number, since it uses less digits than its factorization.

22247670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 22247670 is about 4716.7435800561. The cubic root of 22247670 is about 281.2514982636.

The spelling of 22247670 in words is "twenty-two million, two hundred forty-seven thousand, six hundred seventy".