68740070 has 32 divisors (see below), whose sum is σ = 143410176. Its totient is φ = 23234400.

The previous prime is 68740069. The next prime is 68740073. The reversal of 68740070 is 7004786.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68740073) 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 15 ways as a sum of consecutive naturals, for example, 1946 + ... + 11885.

It is an arithmetic number, because the mean of its divisors is an integer number (4481568).

Almost surely, 2^68740070 is an apocalyptic number.

68740070 is an abundant number, since it is smaller than the sum of its proper divisors (74670106).

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

68740070 is a wasteful number, since it uses less digits than its factorization.

68740070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13916.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 68740070 is about 8290.9631527344. The cubic root of 68740070 is about 409.6409110532.

The spelling of 68740070 in words is "sixty-eight million, seven hundred forty thousand, seventy".