662401368 has 64 divisors (see below), whose sum is σ = 1860732000. Its totient is φ = 218313216.

The previous prime is 662401361. The next prime is 662401391. The reversal of 662401368 is 863104266.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662401361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1996 + ... + 36452.

Almost surely, 2^662401368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662401368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (930366000).

662401368 is an abundant number, since it is smaller than the sum of its proper divisors (1198330632).

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

662401368 is a wasteful number, since it uses less digits than its factorization.

662401368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34561 (or 34551 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 662401368 is about 25737.1592838060. The cubic root of 662401368 is about 871.7134365449.

The spelling of 662401368 in words is "six hundred sixty-two million, four hundred one thousand, three hundred sixty-eight".