68086020 has 48 divisors (see below), whose sum is σ = 201858048. Its totient is φ = 17088000.

The previous prime is 68086001. The next prime is 68086021. The reversal of 68086020 is 2068086.

It is a super-2 number, since 2×68086020² = 9271412238880800, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (68086021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32356 + ... + 34395.

It is an arithmetic number, because the mean of its divisors is an integer number (4205376).

Almost surely, 2^68086020 is an apocalyptic number.

68086020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68086020 is an abundant number, since it is smaller than the sum of its proper divisors (133772028).

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

68086020 is a wasteful number, since it uses less digits than its factorization.

68086020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66780 (or 66778 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 68086020 is about 8251.4253314200. The cubic root of 68086020 is about 408.3375474599.

The spelling of 68086020 in words is "sixty-eight million, eighty-six thousand, twenty".