68422190 has 8 divisors (see below), whose sum is σ = 123159960. Its totient is φ = 27368872.

The previous prime is 68422187. The next prime is 68422199. The reversal of 68422190 is 9122486.

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

It is a super-2 number, since 2×68422190² = 9363192168792200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68422199) 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, 3421100 + ... + 3421119.

It is an arithmetic number, because the mean of its divisors is an integer number (15394995).

Almost surely, 2^68422190 is an apocalyptic number.

68422190 is a deficient number, since it is larger than the sum of its proper divisors (54737770).

68422190 is a wasteful number, since it uses less digits than its factorization.

68422190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6842226.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 68422190 is about 8271.7706689680. The cubic root of 68422190 is about 409.0084905270.

The spelling of 68422190 in words is "sixty-eight million, four hundred twenty-two thousand, one hundred ninety".