68073340 has 48 divisors (see below), whose sum is σ = 149117472. Its totient is φ = 26078976.

The previous prime is 68073337. The next prime is 68073361. The reversal of 68073340 is 4337086.

It is a plaindrome in base 13.

It is a congruent number.

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, 48894 + ... + 50266.

It is an arithmetic number, because the mean of its divisors is an integer number (3106614).

Almost surely, 2^68073340 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 68073340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74558736).

68073340 is an abundant number, since it is smaller than the sum of its proper divisors (81044132).

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

68073340 is a wasteful number, since it uses less digits than its factorization.

68073340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486 (or 1484 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 68073340 is about 8250.6569435409. The cubic root of 68073340 is about 408.3121969716.

The spelling of 68073340 in words is "sixty-eight million, seventy-three thousand, three hundred forty".