5640000 has 140 divisors (see below), whose sum is σ = 19043904. Its totient is φ = 1472000.

The previous prime is 5639989. The next prime is 5640031. The reversal of 5640000 is 465.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 119977 + ... + 120023.

Almost surely, 2^5640000 is an apocalyptic number.

5640000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9521952).

5640000 is an abundant number, since it is smaller than the sum of its proper divisors (13403904).

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

5640000 is an equidigital number, since it uses as much as digits as its factorization.

5640000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 5640000 is about 2374.8684174076. The cubic root of 5640000 is about 178.0026090599.

Adding to 5640000 its reverse (465), we get a palindrome (5640465).

It can be divided in two parts, 5 and 640000, that multiplied together give a 5-th power (3200000 = 20⁵).

The spelling of 5640000 in words is "five million, six hundred forty thousand".