68334540 has 48 divisors (see below), whose sum is σ = 197514240. Its totient is φ = 17634240.

The previous prime is 68334521. The next prime is 68334599. The reversal of 68334540 is 4543386.

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, 16510 + ... + 20229.

It is an arithmetic number, because the mean of its divisors is an integer number (4114880).

Almost surely, 2^68334540 is an apocalyptic number.

68334540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68334540 is an abundant number, since it is smaller than the sum of its proper divisors (129179700).

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

68334540 is a wasteful number, since it uses less digits than its factorization.

68334540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36782 (or 36780 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 68334540 is about 8266.4708310137. The cubic root of 68334540 is about 408.8337669318.

The spelling of 68334540 in words is "sixty-eight million, three hundred thirty-four thousand, five hundred forty".