68547340 has 12 divisors (see below), whose sum is σ = 143949456. Its totient is φ = 27418928.

The previous prime is 68547319. The next prime is 68547343. The reversal of 68547340 is 4374586.

It is a self number, because there is not a number n which added to its sum of digits gives 68547340.

It is not an unprimeable number, because it can be changed into a prime (68547343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1713664 + ... + 1713703.

It is an arithmetic number, because the mean of its divisors is an integer number (11995788).

Almost surely, 2^68547340 is an apocalyptic number.

It is an amenable number.

68547340 is an abundant number, since it is smaller than the sum of its proper divisors (75402116).

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

68547340 is a wasteful number, since it uses less digits than its factorization.

68547340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3427376 (or 3427374 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 68547340 is about 8279.3320986659. The cubic root of 68547340 is about 409.2577090703.

The spelling of 68547340 in words is "sixty-eight million, five hundred forty-seven thousand, three hundred forty".