68071400 has 48 divisors (see below), whose sum is σ = 167584140. Its totient is φ = 25625600.

The previous prime is 68071351. The next prime is 68071447. The reversal of 68071400 is 417086.

It can be written as a sum of positive squares in 6 ways, for example, as 15856324 + 52215076 = 3982^2 + 7226^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68071400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6611 + ... + 13410.

Almost surely, 2^68071400 is an apocalyptic number.

It is an amenable number.

68071400 is an abundant number, since it is smaller than the sum of its proper divisors (99512740).

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

68071400 is a wasteful number, since it uses less digits than its factorization.

68071400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20054 (or 20045 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 68071400 is about 8250.5393763075. The cubic root of 68071400 is about 408.3083181492.

Adding to 68071400 its reverse (417086), we get a palindrome (68488486).

The spelling of 68071400 in words is "sixty-eight million, seventy-one thousand, four hundred".