68988020 has 24 divisors (see below), whose sum is σ = 149549568. Its totient is φ = 26704800.

The previous prime is 68988019. The next prime is 68988037. The reversal of 68988020 is 2088986.

It is a happy number.

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, 55016 + ... + 56255.

It is an arithmetic number, because the mean of its divisors is an integer number (6231232).

Almost surely, 2^68988020 is an apocalyptic number.

It is an amenable number.

68988020 is an abundant number, since it is smaller than the sum of its proper divisors (80561548).

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

68988020 is a wasteful number, since it uses less digits than its factorization.

68988020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111311 (or 111309 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 68988020 is about 8305.9027203550. The cubic root of 68988020 is about 410.1328540312.

The spelling of 68988020 in words is "sixty-eight million, nine hundred eighty-eight thousand, twenty".