68273790 has 32 divisors (see below), whose sum is σ = 176462496. Its totient is φ = 16805760.

The previous prime is 68273789. The next prime is 68273833. The reversal of 68273790 is 9737286.

It is a super-2 number, since 2×68273790² = 9322620801928200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87141 + ... + 87920.

It is an arithmetic number, because the mean of its divisors is an integer number (5514453).

Almost surely, 2^68273790 is an apocalyptic number.

68273790 is an abundant number, since it is smaller than the sum of its proper divisors (108188706).

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

68273790 is a wasteful number, since it uses less digits than its factorization.

68273790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175084.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 68273790 is about 8262.7955317798. The cubic root of 68273790 is about 408.7125787549.

The spelling of 68273790 in words is "sixty-eight million, two hundred seventy-three thousand, seven hundred ninety".