23401434 has 32 divisors (see below), whose sum is σ = 55336320. Its totient is φ = 6455232.

The previous prime is 23401379. The next prime is 23401451. The reversal of 23401434 is 43410432.

It is a super-2 number, since 2×23401434² = 1095254226512712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 23401434.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8389 + ... + 10824.

It is an arithmetic number, because the mean of its divisors is an integer number (1729260).

Almost surely, 2^23401434 is an apocalyptic number.

23401434 is an abundant number, since it is smaller than the sum of its proper divisors (31934886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23401434 is a wasteful number, since it uses less digits than its factorization.

23401434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19254.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 23401434 is about 4837.5028682162. The cubic root of 23401434 is about 286.0316932293.

Adding to 23401434 its reverse (43410432), we get a palindrome (66811866).

The spelling of 23401434 in words is "twenty-three million, four hundred one thousand, four hundred thirty-four".