68290452 has 30 divisors (see below), whose sum is σ = 178525578. Its totient is φ = 22763376.

The previous prime is 68290451. The next prime is 68290457. The reversal of 68290452 is 25409286.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 46049796 + 22240656 = 6786^2 + 4716^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68290451) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 105063 + ... + 105710.

Almost surely, 2^68290452 is an apocalyptic number.

It is an amenable number.

68290452 is an abundant number, since it is smaller than the sum of its proper divisors (110235126).

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

68290452 is a wasteful number, since it uses less digits than its factorization.

68290452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210789 (or 210778 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 68290452 is about 8263.8037246779. The cubic root of 68290452 is about 408.7458243829.

The spelling of 68290452 in words is "sixty-eight million, two hundred ninety thousand, four hundred fifty-two".