68400486 has 96 divisors (see below), whose sum is σ = 195706368. Its totient is φ = 16715520.

The previous prime is 68400467. The next prime is 68400509.

68400486 is nontrivially palindromic in base 10.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 68400486.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22111 + ... + 25013.

It is an arithmetic number, because the mean of its divisors is an integer number (2038608).

Almost surely, 2^68400486 is an apocalyptic number.

68400486 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 68400486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97853184).

68400486 is an abundant number, since it is smaller than the sum of its proper divisors (127305882).

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

68400486 is a wasteful number, since it uses less digits than its factorization.

68400486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946 (or 2943 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 68400486 is about 8270.4586329901. The cubic root of 68400486 is about 408.9652391633.

It can be divided in two parts, 68400 and 486, that added together give a palindrome (68886).

The spelling of 68400486 in words is "sixty-eight million, four hundred thousand, four hundred eighty-six".