68490822 has 8 divisors (see below), whose sum is σ = 136981656. Its totient is φ = 22830272.

The previous prime is 68490791. The next prime is 68490823. The reversal of 68490822 is 22809486.

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

68490822 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68490823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5707563 + ... + 5707574.

It is an arithmetic number, because the mean of its divisors is an integer number (17122707).

Almost surely, 2^68490822 is an apocalyptic number.

68490822 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68490822 is a wasteful number, since it uses less digits than its factorization.

68490822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11415142.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 68490822 is about 8275.9181967924. The cubic root of 68490822 is about 409.1451990531.

The spelling of 68490822 in words is "sixty-eight million, four hundred ninety thousand, eight hundred twenty-two".