5690640 has 80 divisors (see below), whose sum is σ = 17873856. Its totient is φ = 1497600.

The previous prime is 5690627. The next prime is 5690651. The reversal of 5690640 is 460965.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 5690598 and 5690607.

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, 31350 + ... + 31530.

Almost surely, 2^5690640 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 5690640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8936928).

5690640 is an abundant number, since it is smaller than the sum of its proper divisors (12183216).

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

5690640 is a wasteful number, since it uses less digits than its factorization.

5690640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 5690640 is about 2385.5062355819. The cubic root of 5690640 is about 178.5337679056.

The spelling of 5690640 in words is "five million, six hundred ninety thousand, six hundred forty".