2729542 has 4 divisors (see below), whose sum is σ = 4094316. Its totient is φ = 1364770.

The previous prime is 2729539. The next prime is 2729549. The reversal of 2729542 is 2459272.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2729549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682384 + ... + 682387.

It is an arithmetic number, because the mean of its divisors is an integer number (1023579).

2^2729542 is an apocalyptic number.

2729542 is a deficient number, since it is larger than the sum of its proper divisors (1364774).

2729542 is a wasteful number, since it uses less digits than its factorization.

2729542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364773.

The product of its digits is 10080, while the sum is 31.

The square root of 2729542 is about 1652.1325612674. The cubic root of 2729542 is about 139.7536825269.

The spelling of 2729542 in words is "two million, seven hundred twenty-nine thousand, five hundred forty-two".