23401455 has 32 divisors (see below), whose sum is σ = 46683648. Its totient is φ = 9724800.

The previous prime is 23401453. The next prime is 23401457. The reversal of 23401455 is 55410432.

It is an interprime number because it is at equal distance from previous prime (23401453) and next prime (23401457).

It is not a de Polignac number, because 23401455 - 2¹ = 23401453 is a prime.

It is a super-2 number, since 2×23401455² = 1095256192234050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23401451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8976 + ... + 11285.

It is an arithmetic number, because the mean of its divisors is an integer number (1458864).

Almost surely, 2^23401455 is an apocalyptic number.

23401455 is a deficient number, since it is larger than the sum of its proper divisors (23282193).

23401455 is a wasteful number, since it uses less digits than its factorization.

23401455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20287.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 23401455 is about 4837.5050387571. The cubic root of 23401455 is about 286.0317787890.

Adding to 23401455 its reverse (55410432), we get a palindrome (78811887).

The spelling of 23401455 in words is "twenty-three million, four hundred one thousand, four hundred fifty-five".