662675840 has 128 divisors (see below), whose sum is σ = 1654456320. Its totient is φ = 253532160.

The previous prime is 662675833. The next prime is 662675857. The reversal of 662675840 is 48576266.

662675840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 662675791 and 662675800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2519549 + ... + 2519811.

It is an arithmetic number, because the mean of its divisors is an integer number (12925440).

Almost surely, 2^662675840 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 662675840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (827228160).

662675840 is an abundant number, since it is smaller than the sum of its proper divisors (991780480).

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

662675840 is a wasteful number, since it uses less digits than its factorization.

662675840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 662675840 is about 25742.4909439627. The cubic root of 662675840 is about 871.8338207021.

The spelling of 662675840 in words is "six hundred sixty-two million, six hundred seventy-five thousand, eight hundred forty".