5646840 has 32 divisors (see below), whose sum is σ = 16940880. Its totient is φ = 1505792.

The previous prime is 5646821. The next prime is 5646859. The reversal of 5646840 is 486465.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5646821) and next prime (5646859).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23409 + ... + 23648.

Almost surely, 2^5646840 is an apocalyptic number.

It is an amenable number.

5646840 is an abundant number, since it is smaller than the sum of its proper divisors (11294040).

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

5646840 is a wasteful number, since it uses less digits than its factorization.

5646840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47071 (or 47067 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 5646840 is about 2376.3080608372. The cubic root of 5646840 is about 178.0745384914.

The spelling of 5646840 in words is "five million, six hundred forty-six thousand, eight hundred forty".