68399580 has 24 divisors (see below), whose sum is σ = 191518992. Its totient is φ = 18239872.

The previous prime is 68399567. The next prime is 68399581. The reversal of 68399580 is 8599386.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68399581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569937 + ... + 570056.

It is an arithmetic number, because the mean of its divisors is an integer number (7979958).

Almost surely, 2^68399580 is an apocalyptic number.

68399580 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68399580 is an abundant number, since it is smaller than the sum of its proper divisors (123119412).

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

68399580 is a wasteful number, since it uses less digits than its factorization.

68399580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140005 (or 1140003 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 68399580 is about 8270.4038595464. The cubic root of 68399580 is about 408.9634335029.

The spelling of 68399580 in words is "sixty-eight million, three hundred ninety-nine thousand, five hundred eighty".