5091240 has 256 divisors, whose sum is σ = 20736000. Its totient is φ = 967680.

The previous prime is 5091227. The next prime is 5091241. The reversal of 5091240 is 421905.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5091241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 175546 + ... + 175574.

It is an arithmetic number, because the mean of its divisors is an integer number (81000).

Almost surely, 2^5091240 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 5091240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10368000).

5091240 is an abundant number, since it is smaller than the sum of its proper divisors (15644760).

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

5091240 is a wasteful number, since it uses less digits than its factorization.

5091240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 5091240 is about 2256.3776279692. The cubic root of 5091240 is about 172.0314526941.

The spelling of 5091240 in words is "five million, ninety-one thousand, two hundred forty".