5540389 has 4 divisors (see below), whose sum is σ = 5565024. Its totient is φ = 5515756.

The previous prime is 5540387. The next prime is 5540393. The reversal of 5540389 is 9830455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5540389 - 2¹ = 5540387 is a prime.

It is a Duffinian number.

5540389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5540387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11977 + ... + 12430.

It is an arithmetic number, because the mean of its divisors is an integer number (1391256).

Almost surely, 2^5540389 is an apocalyptic number.

It is an amenable number.

5540389 is a deficient number, since it is larger than the sum of its proper divisors (24635).

5540389 is a wasteful number, since it uses less digits than its factorization.

5540389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24634.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 5540389 is about 2353.8030928691. The cubic root of 5540389 is about 176.9484459429.

It can be divided in two parts, 5540 and 389, that added together give a square (5929 = 77²).

The spelling of 5540389 in words is "five million, five hundred forty thousand, three hundred eighty-nine".