5662640 has 20 divisors (see below), whose sum is σ = 13165824. Its totient is φ = 2265024.

The previous prime is 5662637. The next prime is 5662663. The reversal of 5662640 is 462665.

It is a tau number, because it is divible by the number of its divisors (20).

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35312 + ... + 35471.

Almost surely, 2^5662640 is an apocalyptic number.

It is an amenable number.

5662640 is an abundant number, since it is smaller than the sum of its proper divisors (7503184).

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

5662640 is a wasteful number, since it uses less digits than its factorization.

5662640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70796 (or 70790 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 5662640 is about 2379.6302233751. The cubic root of 5662640 is about 178.2404695034.

The spelling of 5662640 in words is "five million, six hundred sixty-two thousand, six hundred forty".