662641436 has 48 divisors (see below), whose sum is σ = 1273761216. Its totient is φ = 300340224.

The previous prime is 662641417. The next prime is 662641451. The reversal of 662641436 is 634146266.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 662641436.

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, 257870 + ... + 260426.

It is an arithmetic number, because the mean of its divisors is an integer number (26536692).

Almost surely, 2^662641436 is an apocalyptic number.

It is an amenable number.

662641436 is a deficient number, since it is larger than the sum of its proper divisors (611119780).

662641436 is a wasteful number, since it uses less digits than its factorization.

662641436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718 (or 2716 counting only the distinct ones).

The product of its digits is 124416, while the sum is 38.

The square root of 662641436 is about 25741.8227015882. The cubic root of 662641436 is about 871.8187328376.

The spelling of 662641436 in words is "six hundred sixty-two million, six hundred forty-one thousand, four hundred thirty-six".