2402749 has 4 divisors (see below), whose sum is σ = 2409664. Its totient is φ = 2395836.

The previous prime is 2402747. The next prime is 2402753. The reversal of 2402749 is 9472042.

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 2402749 - 2¹ = 2402747 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2402747) 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, 2907 + ... + 3640.

It is an arithmetic number, because the mean of its divisors is an integer number (602416).

2^2402749 is an apocalyptic number.

It is an amenable number.

2402749 is a deficient number, since it is larger than the sum of its proper divisors (6915).

2402749 is an equidigital number, since it uses as much as digits as its factorization.

2402749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6914.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2402749 is about 1550.0803204996. The cubic root of 2402749 is about 133.9376891553.

The spelling of 2402749 in words is "two million, four hundred two thousand, seven hundred forty-nine".