68405298 has 32 divisors (see below), whose sum is σ = 150123456. Its totient is φ = 20649408.

The previous prime is 68405269. The next prime is 68405317. The reversal of 68405298 is 89250486.

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, 4140 + ... + 12407.

It is an arithmetic number, because the mean of its divisors is an integer number (4691358).

Almost surely, 2^68405298 is an apocalyptic number.

68405298 is an abundant number, since it is smaller than the sum of its proper divisors (81718158).

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

68405298 is a wasteful number, since it uses less digits than its factorization.

68405298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16618.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 68405298 is about 8270.7495428165. The cubic root of 68405298 is about 408.9748292247.

The spelling of 68405298 in words is "sixty-eight million, four hundred five thousand, two hundred ninety-eight".