2049742 has 4 divisors (see below), whose sum is σ = 3074616. Its totient is φ = 1024870.

The previous prime is 2049727. The next prime is 2049787. The reversal of 2049742 is 2479402.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2049742.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512434 + ... + 512437.

It is an arithmetic number, because the mean of its divisors is an integer number (768654).

2^2049742 is an apocalyptic number.

2049742 is a deficient number, since it is larger than the sum of its proper divisors (1024874).

2049742 is a wasteful number, since it uses less digits than its factorization.

2049742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024873.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2049742 is about 1431.6920059845. The cubic root of 2049742 is about 127.0280798472.

The spelling of 2049742 in words is "two million, forty-nine thousand, seven hundred forty-two".