68292642 has 48 divisors (see below), whose sum is σ = 151683840. Its totient is φ = 20481120.

The previous prime is 68292629. The next prime is 68292661. The reversal of 68292642 is 24629286.

It is a self number, because there is not a number n which added to its sum of digits gives 68292642.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78703 + ... + 79565.

It is an arithmetic number, because the mean of its divisors is an integer number (3160080).

Almost surely, 2^68292642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68292642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75841920).

68292642 is an abundant number, since it is smaller than the sum of its proper divisors (83391198).

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

68292642 is a wasteful number, since it uses less digits than its factorization.

68292642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999 (or 988 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 68292642 is about 8263.9362291828. The cubic root of 68292642 is about 408.7501936798.

The spelling of 68292642 in words is "sixty-eight million, two hundred ninety-two thousand, six hundred forty-two".