68909460 has 48 divisors (see below), whose sum is σ = 193608576. Its totient is φ = 18312832.

The previous prime is 68909459. The next prime is 68909471. The reversal of 68909460 is 6490986.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 17209 + ... + 20831.

It is an arithmetic number, because the mean of its divisors is an integer number (4033512).

Almost surely, 2^68909460 is an apocalyptic number.

68909460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68909460 is an abundant number, since it is smaller than the sum of its proper divisors (124699116).

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

68909460 is a wasteful number, since it uses less digits than its factorization.

68909460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3952 (or 3950 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 68909460 is about 8301.1722063815. The cubic root of 68909460 is about 409.9771155183.

The spelling of 68909460 in words is "sixty-eight million, nine hundred nine thousand, four hundred sixty".