5540397 has 8 divisors (see below), whose sum is σ = 7404000. Its totient is φ = 3685200.

The previous prime is 5540393. The next prime is 5540411. The reversal of 5540397 is 7930455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5540397 - 2² = 5540393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5540393) 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, 354 + ... + 3347.

It is an arithmetic number, because the mean of its divisors is an integer number (925500).

Almost surely, 2^5540397 is an apocalyptic number.

It is an amenable number.

5540397 is a deficient number, since it is larger than the sum of its proper divisors (1863603).

5540397 is a wasteful number, since it uses less digits than its factorization.

5540397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4203.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 5540397 is about 2353.8047922460. The cubic root of 5540397 is about 176.9485311106.

The spelling of 5540397 in words is "five million, five hundred forty thousand, three hundred ninety-seven".