68942404 has 6 divisors (see below), whose sum is σ = 120649214. Its totient is φ = 34471200.

The previous prime is 68942369. The next prime is 68942411. The reversal of 68942404 is 40424986.

It can be written as a sum of positive squares in only one way, i.e., 53260804 + 15681600 = 7298^2 + 3960^2 .

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 as a sum of consecutive naturals, namely, 8617797 + ... + 8617804.

Almost surely, 2^68942404 is an apocalyptic number.

It is an amenable number.

68942404 is a deficient number, since it is larger than the sum of its proper divisors (51706810).

68942404 is a wasteful number, since it uses less digits than its factorization.

68942404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17235605 (or 17235603 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 68942404 is about 8303.1562673480. The cubic root of 68942404 is about 410.0424385974.

The spelling of 68942404 in words is "sixty-eight million, nine hundred forty-two thousand, four hundred four".