68345736 has 64 divisors (see below), whose sum is σ = 182476800. Its totient is φ = 21268800.

The previous prime is 68345701. The next prime is 68345749. The reversal of 68345736 is 63754386.

It is a super-2 number, since 2×68345736² = 9342279258763392, which contains 22 as substring.

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, 31321 + ... + 33431.

It is an arithmetic number, because the mean of its divisors is an integer number (2851200).

Almost surely, 2^68345736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68345736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91238400).

68345736 is an abundant number, since it is smaller than the sum of its proper divisors (114131064).

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

68345736 is a wasteful number, since it uses less digits than its factorization.

68345736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210 (or 2206 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 68345736 is about 8267.1479967399. The cubic root of 68345736 is about 408.8560936249.

The spelling of 68345736 in words is "sixty-eight million, three hundred forty-five thousand, seven hundred thirty-six".