68409324 has 36 divisors (see below), whose sum is σ = 173846400. Its totient is φ = 22681440.

The previous prime is 68409323. The next prime is 68409331. The reversal of 68409324 is 42390486.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×68409324² = 9359671220273952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (68409323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1902 + ... + 11850.

Almost surely, 2^68409324 is an apocalyptic number.

It is an amenable number.

68409324 is an abundant number, since it is smaller than the sum of its proper divisors (105437076).

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

68409324 is a wasteful number, since it uses less digits than its factorization.

68409324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10150 (or 10145 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 68409324 is about 8270.9929270916. The cubic root of 68409324 is about 408.9828524842.

The spelling of 68409324 in words is "sixty-eight million, four hundred nine thousand, three hundred twenty-four".