68232140 has 24 divisors (see below), whose sum is σ = 143636640. Its totient is φ = 27226368.

The previous prime is 68232137. The next prime is 68232163. The reversal of 68232140 is 4123286.

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, 4721 + ... + 12599.

It is an arithmetic number, because the mean of its divisors is an integer number (5984860).

Almost surely, 2^68232140 is an apocalyptic number.

It is an amenable number.

68232140 is an abundant number, since it is smaller than the sum of its proper divisors (75404500).

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

68232140 is a wasteful number, since it uses less digits than its factorization.

68232140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8321 (or 8319 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 68232140 is about 8260.2748138303. The cubic root of 68232140 is about 408.6294509951.

The spelling of 68232140 in words is "sixty-eight million, two hundred thirty-two thousand, one hundred forty".