2749842 has 16 divisors (see below), whose sum is σ = 6110880. Its totient is φ = 916596.

The previous prime is 2749823. The next prime is 2749847. The reversal of 2749842 is 2489472.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁵ + 7⁶ + 4³ + 9⁴ + 8⁷ + 4⁶ + 2¹⁹ .

It is a junction number, because it is equal to n+sod(n) for n = 2749797 and 2749806.

It is not an unprimeable number, because it can be changed into a prime (2749847) 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, 25408 + ... + 25515.

It is an arithmetic number, because the mean of its divisors is an integer number (381930).

2^2749842 is an apocalyptic number.

2749842 is an abundant number, since it is smaller than the sum of its proper divisors (3361038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2749842 is a wasteful number, since it uses less digits than its factorization.

2749842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50934 (or 50928 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 2749842 is about 1658.2647557010. The cubic root of 2749842 is about 140.0992833164.

The spelling of 2749842 in words is "two million, seven hundred forty-nine thousand, eight hundred forty-two".