23421398 has 32 divisors (see below), whose sum is σ = 47174400. Its totient is φ = 8422560.

The previous prime is 23421371. The next prime is 23421401. The reversal of 23421398 is 89312432.

It is a happy number.

It is a congruent number.

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, 3848 + ... + 7851.

It is an arithmetic number, because the mean of its divisors is an integer number (1474200).

Almost surely, 2^23421398 is an apocalyptic number.

23421398 is an abundant number, since it is smaller than the sum of its proper divisors (23753002).

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

23421398 is a wasteful number, since it uses less digits than its factorization.

23421398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11732.

The product of its digits is 10368, while the sum is 32.

The square root of 23421398 is about 4839.5658896227. The cubic root of 23421398 is about 286.1130089532.

The spelling of 23421398 in words is "twenty-three million, four hundred twenty-one thousand, three hundred ninety-eight".