68287452 has 12 divisors (see below), whose sum is σ = 159337416. Its totient is φ = 22762480.

The previous prime is 68287433. The next prime is 68287477. The reversal of 68287452 is 25478286.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×68287452² = 9326352201304608, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2845299 + ... + 2845322.

It is an arithmetic number, because the mean of its divisors is an integer number (13278118).

Almost surely, 2^68287452 is an apocalyptic number.

It is an amenable number.

68287452 is an abundant number, since it is smaller than the sum of its proper divisors (91049964).

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

68287452 is a wasteful number, since it uses less digits than its factorization.

68287452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5690628 (or 5690626 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 68287452 is about 8263.6222082087. The cubic root of 68287452 is about 408.7398388930.

The spelling of 68287452 in words is "sixty-eight million, two hundred eighty-seven thousand, four hundred fifty-two".