68015400 has 48 divisors (see below), whose sum is σ = 210849600. Its totient is φ = 18137280.

The previous prime is 68015369. The next prime is 68015401. The reversal of 68015400 is 451086.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (68015401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56080 + ... + 57279.

It is an arithmetic number, because the mean of its divisors is an integer number (4392700).

Almost surely, 2^68015400 is an apocalyptic number.

68015400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68015400 is an abundant number, since it is smaller than the sum of its proper divisors (142834200).

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

68015400 is a wasteful number, since it uses less digits than its factorization.

68015400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113378 (or 113369 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 68015400 is about 8247.1449605303. The cubic root of 68015400 is about 408.1963203604.

Adding to 68015400 its reverse (451086), we get a palindrome (68466486).

The spelling of 68015400 in words is "sixty-eight million, fifteen thousand, four hundred".