22402455 has 16 divisors (see below), whose sum is σ = 36380544. Its totient is φ = 11769120.

The previous prime is 22402453. The next prime is 22402469. The reversal of 22402455 is 55420422.

It is a happy number.

It is not a de Polignac number, because 22402455 - 2¹ = 22402453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22402453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10141 + ... + 12150.

It is an arithmetic number, because the mean of its divisors is an integer number (2273784).

Almost surely, 2^22402455 is an apocalyptic number.

22402455 is a deficient number, since it is larger than the sum of its proper divisors (13978089).

22402455 is a wasteful number, since it uses less digits than its factorization.

22402455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22366.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 22402455 is about 4733.1231760857. The cubic root of 22402455 is about 281.9022471911.

Adding to 22402455 its reverse (55420422), we get a palindrome (77822877).

The spelling of 22402455 in words is "twenty-two million, four hundred two thousand, four hundred fifty-five".