68400410 has 16 divisors (see below), whose sum is σ = 132591816. Its totient is φ = 25255488.

The previous prime is 68400403. The next prime is 68400419. The reversal of 68400410 is 1400486.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 49014001 + 19386409 = 7001^2 + 4403^2 .

It is not an unprimeable number, because it can be changed into a prime (68400419) 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, 262949 + ... + 263208.

Almost surely, 2^68400410 is an apocalyptic number.

68400410 is a deficient number, since it is larger than the sum of its proper divisors (64191406).

68400410 is a wasteful number, since it uses less digits than its factorization.

68400410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526177.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 68400410 is about 8270.4540383222. The cubic root of 68400410 is about 408.9650876957.

Adding to 68400410 its reverse (1400486), we get a palindrome (69800896).

The spelling of 68400410 in words is "sixty-eight million, four hundred thousand, four hundred ten".