5191840 has 48 divisors (see below), whose sum is σ = 12611592. Its totient is φ = 2018304.

The previous prime is 5191831. The next prime is 5191843. The reversal of 5191840 is 481915.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5180176 + 11664 = 2276^2 + 108^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5191799 and 5191808.

It is not an unprimeable number, because it can be changed into a prime (5191843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5482 + ... + 6358.

Almost surely, 2^5191840 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 5191840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6305796).

5191840 is an abundant number, since it is smaller than the sum of its proper divisors (7419752).

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

5191840 is a wasteful number, since it uses less digits than its factorization.

5191840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 921 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 5191840 is about 2278.5609493713. The cubic root of 5191840 is about 173.1571516874.

The spelling of 5191840 in words is "five million, one hundred ninety-one thousand, eight hundred forty".