22607945 has 8 divisors (see below), whose sum is σ = 27641736. Its totient is φ = 17744896.

The previous prime is 22607911. The next prime is 22607957. The reversal of 22607945 is 54970622.

It can be written as a sum of positive squares in 4 ways, for example, as 11744329 + 10863616 = 3427^2 + 3296^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22607945 - 2¹⁶ = 22542409 is a prime.

It is a super-2 number, since 2×22607945² = 1022238354246050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42392 + ... + 42921.

It is an arithmetic number, because the mean of its divisors is an integer number (3455217).

Almost surely, 2^22607945 is an apocalyptic number.

It is an amenable number.

22607945 is a deficient number, since it is larger than the sum of its proper divisors (5033791).

22607945 is an equidigital number, since it uses as much as digits as its factorization.

22607945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85371.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 22607945 is about 4754.7812778297. The cubic root of 22607945 is about 282.7615558655.

The spelling of 22607945 in words is "twenty-two million, six hundred seven thousand, nine hundred forty-five".