68709024 has 36 divisors (see below), whose sum is σ = 195392106. Its totient is φ = 22902912.

The previous prime is 68709023. The next prime is 68709029. The reversal of 68709024 is 42090786.

It can be written as a sum of positive squares in only one way, i.e., 67568400 + 1140624 = 8220^2 + 1068^2 .

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

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

It is a self number, because there is not a number n which added to its sum of digits gives 68709024.

It is not an unprimeable number, because it can be changed into a prime (68709023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118999 + ... + 119574.

Almost surely, 2^68709024 is an apocalyptic number.

It is an amenable number.

68709024 is an abundant number, since it is smaller than the sum of its proper divisors (126683082).

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

68709024 is a wasteful number, since it uses less digits than its factorization.

68709024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238589 (or 238578 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 68709024 is about 8289.0906618277. The cubic root of 68709024 is about 409.5792312264.

The spelling of 68709024 in words is "sixty-eight million, seven hundred nine thousand, twenty-four".