68790456 has 96 divisors (see below), whose sum is σ = 218181600. Its totient is φ = 19169280.

The previous prime is 68790451. The next prime is 68790467. The reversal of 68790456 is 65409786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68790451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19000 + ... + 22328.

It is an arithmetic number, because the mean of its divisors is an integer number (2272725).

Almost surely, 2^68790456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68790456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109090800).

68790456 is an abundant number, since it is smaller than the sum of its proper divisors (149391144).

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

68790456 is a wasteful number, since it uses less digits than its factorization.

68790456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389 (or 3382 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 68790456 is about 8294.0012056908. The cubic root of 68790456 is about 409.7409746016.

The spelling of 68790456 in words is "sixty-eight million, seven hundred ninety thousand, four hundred fifty-six".