68409434 has 16 divisors (see below), whose sum is σ = 106704000. Its totient is φ = 32853744.

The previous prime is 68409427. The next prime is 68409457. The reversal of 68409434 is 43490486.

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, 8579 + ... + 14505.

It is an arithmetic number, because the mean of its divisors is an integer number (6669000).

Almost surely, 2^68409434 is an apocalyptic number.

68409434 is a deficient number, since it is larger than the sum of its proper divisors (38294566).

68409434 is a wasteful number, since it uses less digits than its factorization.

68409434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6157.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 68409434 is about 8270.9995768347. Note that the first 3 decimals coincide. The cubic root of 68409434 is about 408.9830716945.

The spelling of 68409434 in words is "sixty-eight million, four hundred nine thousand, four hundred thirty-four".