2740399 has 8 divisors (see below), whose sum is σ = 2842560. Its totient is φ = 2640000.

The previous prime is 2740393. The next prime is 2740403. The reversal of 2740399 is 9930472.

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

It is a cyclic number.

It is not a de Polignac number, because 2740399 - 2¹³ = 2732207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2740393) 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, 3274 + ... + 4024.

It is an arithmetic number, because the mean of its divisors is an integer number (355320).

2^2740399 is an apocalyptic number.

2740399 is a deficient number, since it is larger than the sum of its proper divisors (102161).

2740399 is an equidigital number, since it uses as much as digits as its factorization.

2740399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 2740399 is about 1655.4150536950. The cubic root of 2740399 is about 139.9387316944.

The spelling of 2740399 in words is "two million, seven hundred forty thousand, three hundred ninety-nine".