2744542 has 4 divisors (see below), whose sum is σ = 4116816. Its totient is φ = 1372270.

The previous prime is 2744519. The next prime is 2744543. The reversal of 2744542 is 2454472.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2744542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2744543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686134 + ... + 686137.

It is an arithmetic number, because the mean of its divisors is an integer number (1029204).

2^2744542 is an apocalyptic number.

2744542 is a deficient number, since it is larger than the sum of its proper divisors (1372274).

2744542 is a wasteful number, since it uses less digits than its factorization.

2744542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372273.

The product of its digits is 8960, while the sum is 28.

The square root of 2744542 is about 1656.6659289066. The cubic root of 2744542 is about 140.0092170802.

The spelling of 2744542 in words is "two million, seven hundred forty-four thousand, five hundred forty-two".