22403649 has 8 divisors (see below), whose sum is σ = 30000672. Its totient is φ = 14871200.

The previous prime is 22403639. The next prime is 22403651. The reversal of 22403649 is 94630422.

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 22403649 - 2⁵ = 22403617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22403629) 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, 15327 + ... + 16724.

It is an arithmetic number, because the mean of its divisors is an integer number (3750084).

Almost surely, 2^22403649 is an apocalyptic number.

It is an amenable number.

22403649 is a deficient number, since it is larger than the sum of its proper divisors (7597023).

22403649 is a wasteful number, since it uses less digits than its factorization.

22403649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32287.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 22403649 is about 4733.2493067659. The cubic root of 22403649 is about 281.9072553521.

The spelling of 22403649 in words is "twenty-two million, four hundred three thousand, six hundred forty-nine".