22455405 has 24 divisors (see below), whose sum is σ = 44483712. Its totient is φ = 10265184.

The previous prime is 22455379. The next prime is 22455409. The reversal of 22455405 is 50455422.

It is not a de Polignac number, because 22455405 - 2⁵ = 22455373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22455409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35329 + ... + 35958.

It is an arithmetic number, because the mean of its divisors is an integer number (1853488).

Almost surely, 2^22455405 is an apocalyptic number.

It is an amenable number.

22455405 is a deficient number, since it is larger than the sum of its proper divisors (22028307).

22455405 is a wasteful number, since it uses less digits than its factorization.

22455405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71305 (or 71302 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 22455405 is about 4738.7134329900. The cubic root of 22455405 is about 282.1241719644.

The spelling of 22455405 in words is "twenty-two million, four hundred fifty-five thousand, four hundred five".