68401662 has 64 divisors (see below), whose sum is σ = 163814400. Its totient is φ = 18627840.

The previous prime is 68401661. The next prime is 68401667. The reversal of 68401662 is 26610486.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68401661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108087 + ... + 108717.

It is an arithmetic number, because the mean of its divisors is an integer number (2559600).

Almost surely, 2^68401662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68401662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81907200).

68401662 is an abundant number, since it is smaller than the sum of its proper divisors (95412738).

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

68401662 is a wasteful number, since it uses less digits than its factorization.

68401662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 68401662 is about 8270.5297291044. The cubic root of 68401662 is about 408.9675829106.

The spelling of 68401662 in words is "sixty-eight million, four hundred one thousand, six hundred sixty-two".