68392020 has 96 divisors (see below), whose sum is σ = 213494400. Its totient is φ = 16257024.

The previous prime is 68392019. The next prime is 68392061. The reversal of 68392020 is 2029386.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17616 + ... + 21144.

It is an arithmetic number, because the mean of its divisors is an integer number (2223900).

Almost surely, 2^68392020 is an apocalyptic number.

68392020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68392020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106747200).

68392020 is an abundant number, since it is smaller than the sum of its proper divisors (145102380).

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

68392020 is a wasteful number, since it uses less digits than its factorization.

68392020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3577 (or 3575 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 68392020 is about 8269.9467954758. The cubic root of 68392020 is about 408.9483657814.

The spelling of 68392020 in words is "sixty-eight million, three hundred ninety-two thousand, twenty".