22605461 has 4 divisors (see below), whose sum is σ = 23935212. Its totient is φ = 21275712.

The previous prime is 22605439. The next prime is 22605467. The reversal of 22605461 is 16450622.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21104836 + 1500625 = 4594^2 + 1225^2 .

It is a cyclic number.

It is not a de Polignac number, because 22605461 - 2²² = 18411157 is a prime.

It is a super-2 number, since 2×22605461² = 1022013734045042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22605461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22605467) 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, 664850 + ... + 664883.

It is an arithmetic number, because the mean of its divisors is an integer number (5983803).

Almost surely, 2^22605461 is an apocalyptic number.

It is an amenable number.

22605461 is a deficient number, since it is larger than the sum of its proper divisors (1329751).

22605461 is a wasteful number, since it uses less digits than its factorization.

22605461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329750.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 22605461 is about 4754.5200599009. The cubic root of 22605461 is about 282.7511995442.

The spelling of 22605461 in words is "twenty-two million, six hundred five thousand, four hundred sixty-one".