5091940 has 48 divisors (see below), whose sum is σ = 12563712. Its totient is φ = 1696896.

The previous prime is 5091937. The next prime is 5091949. The reversal of 5091940 is 491905.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 5091899 and 5091908.

It is not an unprimeable number, because it can be changed into a prime (5091949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4689 + ... + 5671.

It is an arithmetic number, because the mean of its divisors is an integer number (261744).

Almost surely, 2^5091940 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 5091940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6281856).

5091940 is an abundant number, since it is smaller than the sum of its proper divisors (7471772).

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

5091940 is a wasteful number, since it uses less digits than its factorization.

5091940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036 (or 1034 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 5091940 is about 2256.5327385172. The cubic root of 5091940 is about 172.0393365952.

The spelling of 5091940 in words is "five million, ninety-one thousand, nine hundred forty".