68623340 has 48 divisors (see below), whose sum is σ = 150504480. Its totient is φ = 26257920.

The previous prime is 68623333. The next prime is 68623363. The reversal of 68623340 is 4332686.

It is a junction number, because it is equal to n+sod(n) for n = 68623297 and 68623306.

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, 42671 + ... + 44249.

It is an arithmetic number, because the mean of its divisors is an integer number (3135510).

Almost surely, 2^68623340 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 68623340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75252240).

68623340 is an abundant number, since it is smaller than the sum of its proper divisors (81881140).

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

68623340 is a wasteful number, since it uses less digits than its factorization.

68623340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682 (or 1680 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 68623340 is about 8283.9205693922. The cubic root of 68623340 is about 409.4089043264.

The spelling of 68623340 in words is "sixty-eight million, six hundred twenty-three thousand, three hundred forty".