68484790 has 24 divisors (see below), whose sum is σ = 135500400. Its totient is φ = 24903120.

The previous prime is 68484763. The next prime is 68484791. The reversal of 68484790 is 9748486.

It is a happy number.

It is a super-2 number, since 2×68484790² = 9380332922688200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68484790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68484791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27090 + ... + 29509.

It is an arithmetic number, because the mean of its divisors is an integer number (5645850).

Almost surely, 2^68484790 is an apocalyptic number.

68484790 is a deficient number, since it is larger than the sum of its proper divisors (67015610).

68484790 is a wasteful number, since it uses less digits than its factorization.

68484790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56628 (or 56617 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 68484790 is about 8275.5537579065. The cubic root of 68484790 is about 409.1331875347.

The spelling of 68484790 in words is "sixty-eight million, four hundred eighty-four thousand, seven hundred ninety".