68394470 has 32 divisors (see below), whose sum is σ = 128157120. Its totient is φ = 26248320.

The previous prime is 68394461. The next prime is 68394497. The reversal of 68394470 is 7449386.

It is a congruent number.

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, 51839 + ... + 53141.

It is an arithmetic number, because the mean of its divisors is an integer number (4004910).

Almost surely, 2^68394470 is an apocalyptic number.

68394470 is a deficient number, since it is larger than the sum of its proper divisors (59762650).

68394470 is a wasteful number, since it uses less digits than its factorization.

68394470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 68394470 is about 8270.0949208579. The cubic root of 68394470 is about 408.9532489609.

The spelling of 68394470 in words is "sixty-eight million, three hundred ninety-four thousand, four hundred seventy".