68490526 has 8 divisors (see below), whose sum is σ = 110638584. Its totient is φ = 31611000.

The previous prime is 68490523. The next prime is 68490533. The reversal of 68490526 is 62509486.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68490523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1317100 + ... + 1317151.

It is an arithmetic number, because the mean of its divisors is an integer number (13829823).

Almost surely, 2^68490526 is an apocalyptic number.

68490526 is a deficient number, since it is larger than the sum of its proper divisors (42148058).

68490526 is a wasteful number, since it uses less digits than its factorization.

68490526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634266.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 68490526 is about 8275.9003135611. The cubic root of 68490526 is about 409.1446096449.

The spelling of 68490526 in words is "sixty-eight million, four hundred ninety thousand, five hundred twenty-six".