68309410 has 16 divisors (see below), whose sum is σ = 132415416. Its totient is φ = 25221888.

The previous prime is 68309407. The next prime is 68309411. The reversal of 68309410 is 1490386.

It can be written as a sum of positive squares in 4 ways, for example, as 17799961 + 50509449 = 4219^2 + 7107^2 .

It is not an unprimeable number, because it can be changed into a prime (68309411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262599 + ... + 262858.

Almost surely, 2^68309410 is an apocalyptic number.

68309410 is a deficient number, since it is larger than the sum of its proper divisors (64106006).

68309410 is a wasteful number, since it uses less digits than its factorization.

68309410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525477.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 68309410 is about 8264.9506955577. The cubic root of 68309410 is about 408.7836446353.

Adding to 68309410 its reverse (1490386), we get a palindrome (69799796).

The spelling of 68309410 in words is "sixty-eight million, three hundred nine thousand, four hundred ten".