22404661 has 8 divisors (see below), whose sum is σ = 23182848. Its totient is φ = 21630000.

The previous prime is 22404659. The next prime is 22404671. The reversal of 22404661 is 16640422.

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 22404661 - 2¹ = 22404659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22404631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21216 + ... + 22246.

It is an arithmetic number, because the mean of its divisors is an integer number (2897856).

Almost surely, 2^22404661 is an apocalyptic number.

It is an amenable number.

22404661 is a deficient number, since it is larger than the sum of its proper divisors (778187).

22404661 is a wasteful number, since it uses less digits than its factorization.

22404661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 22404661 is about 4733.3562088649. The cubic root of 22404661 is about 281.9114999858.

The spelling of 22404661 in words is "twenty-two million, four hundred four thousand, six hundred sixty-one".