5540724 has 90 divisors (see below), whose sum is σ = 16897650. Its totient is φ = 1578528.

The previous prime is 5540707. The next prime is 5540741. The reversal of 5540724 is 4270455.

It is an interprime number because it is at equal distance from previous prime (5540707) and next prime (5540741).

It can be written as a sum of positive squares in only one way, i.e., 5143824 + 396900 = 2268^2 + 630^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

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 29 ways as a sum of consecutive naturals, for example, 15702 + ... + 16050.

Almost surely, 2^5540724 is an apocalyptic number.

5540724 is a gapful number since it is divisible by the number (54) 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 5540724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8448825).

5540724 is an abundant number, since it is smaller than the sum of its proper divisors (11356926).

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

5540724 is a wasteful number, since it uses less digits than its factorization.

5540724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 5540724 is about 2353.8742532259. The cubic root of 5540724 is about 176.9520122710.

The spelling of 5540724 in words is "five million, five hundred forty thousand, seven hundred twenty-four".