2742249 has 8 divisors (see below), whose sum is σ = 3670912. Its totient is φ = 1820880.

The previous prime is 2742247. The next prime is 2742263. The reversal of 2742249 is 9422472.

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

It is not a de Polignac number, because 2742249 - 2¹ = 2742247 is a prime.

It is a Duffinian number.

2742249 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2742241) 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, 874 + ... + 2499.

It is an arithmetic number, because the mean of its divisors is an integer number (458864).

2^2742249 is an apocalyptic number.

It is an amenable number.

2742249 is a deficient number, since it is larger than the sum of its proper divisors (928663).

2742249 is a wasteful number, since it uses less digits than its factorization.

2742249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3647.

The product of its digits is 8064, while the sum is 30.

The square root of 2742249 is about 1655.9737316757. The cubic root of 2742249 is about 139.9702147520.

The spelling of 2742249 in words is "two million, seven hundred forty-two thousand, two hundred forty-nine".