68240670 has 16 divisors (see below), whose sum is σ = 163777680. Its totient is φ = 18197504.

The previous prime is 68240633. The next prime is 68240681. The reversal of 68240670 is 7604286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1137315 + ... + 1137374.

It is an arithmetic number, because the mean of its divisors is an integer number (10236105).

Almost surely, 2^68240670 is an apocalyptic number.

68240670 is an abundant number, since it is smaller than the sum of its proper divisors (95537010).

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

68240670 is a wasteful number, since it uses less digits than its factorization.

68240670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274699.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 68240670 is about 8260.7911243415. The cubic root of 68240670 is about 408.6464784740.

The spelling of 68240670 in words is "sixty-eight million, two hundred forty thousand, six hundred seventy".