68710290 has 32 divisors (see below), whose sum is σ = 179896896. Its totient is φ = 16656960.

The previous prime is 68710283. The next prime is 68710331. The reversal of 68710290 is 9201786.

It is a super-2 number, since 2×68710290² = 9442207903768200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103777 + ... + 104436.

It is an arithmetic number, because the mean of its divisors is an integer number (5621778).

Almost surely, 2^68710290 is an apocalyptic number.

68710290 is an abundant number, since it is smaller than the sum of its proper divisors (111186606).

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

68710290 is a wasteful number, since it uses less digits than its factorization.

68710290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208234.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 68710290 is about 8289.1670269093. The cubic root of 68710290 is about 409.5817467821.

The spelling of 68710290 in words is "sixty-eight million, seven hundred ten thousand, two hundred ninety".