2749821242 has 16 divisors (see below), whose sum is σ = 4714676160. Its totient is φ = 1178320608.

The previous prime is 2749821223. The next prime is 2749821271. The reversal of 2749821242 is 2421289472.

It is a self number, because there is not a number n which added to its sum of digits gives 2749821242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141053 + ... + 159359.

It is an arithmetic number, because the mean of its divisors is an integer number (294667260).

Almost surely, 2^2749821242 is an apocalyptic number.

2749821242 is a deficient number, since it is larger than the sum of its proper divisors (1964854918).

2749821242 is a wasteful number, since it uses less digits than its factorization.

2749821242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29045.

The product of its digits is 129024, while the sum is 41.

The square root of 2749821242 is about 52438.7379901538. The cubic root of 2749821242 is about 1400.9893078853.

The spelling of 2749821242 in words is "two billion, seven hundred forty-nine million, eight hundred twenty-one thousand, two hundred forty-two".