68283240 has 64 divisors (see below), whose sum is σ = 205459200. Its totient is φ = 18154752.

The previous prime is 68283233. The next prime is 68283263. The reversal of 68283240 is 4238286.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54946 + ... + 56174.

It is an arithmetic number, because the mean of its divisors is an integer number (3210300).

Almost surely, 2^68283240 is an apocalyptic number.

68283240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68283240 is an abundant number, since it is smaller than the sum of its proper divisors (137175960).

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

68283240 is a wasteful number, since it uses less digits than its factorization.

68283240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706 (or 1702 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 68283240 is about 8263.3673523570. The cubic root of 68283240 is about 408.7314349694.

The spelling of 68283240 in words is "sixty-eight million, two hundred eighty-three thousand, two hundred forty".