68005428 has 24 divisors (see below), whose sum is σ = 162056832. Its totient is φ = 22185984.

The previous prime is 68005409. The next prime is 68005447. The reversal of 68005428 is 82450086.

It is an interprime number because it is at equal distance from previous prime (68005409) and next prime (68005447).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59725 + ... + 60852.

It is an arithmetic number, because the mean of its divisors is an integer number (6752368).

Almost surely, 2^68005428 is an apocalyptic number.

It is an amenable number.

68005428 is an abundant number, since it is smaller than the sum of its proper divisors (94051404).

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

68005428 is a wasteful number, since it uses less digits than its factorization.

68005428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120631 (or 120629 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 68005428 is about 8246.5403655109. The cubic root of 68005428 is about 408.1763703066.

The spelling of 68005428 in words is "sixty-eight million, five thousand, four hundred twenty-eight".