2111742 has 12 divisors (see below), whose sum is σ = 4575480. Its totient is φ = 703908.

The previous prime is 2111737. The next prime is 2111771. The reversal of 2111742 is 2471112.

2111742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 117319 = 2111742 / (2 + 1 + 1 + 1 + 7 + 4 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58642 + ... + 58677.

It is an arithmetic number, because the mean of its divisors is an integer number (381290).

2^2111742 is an apocalyptic number.

2111742 is an abundant number, since it is smaller than the sum of its proper divisors (2463738).

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

2111742 is a wasteful number, since it uses less digits than its factorization.

2111742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117327 (or 117324 counting only the distinct ones).

The product of its digits is 112, while the sum is 18.

The square root of 2111742 is about 1453.1834020522. The cubic root of 2111742 is about 128.2961485940.

Adding to 2111742 its reverse (2471112), we get a palindrome (4582854).

It can be divided in two parts, 211 and 1742, that added together give a triangular number (1953 = T₆₂).

The spelling of 2111742 in words is "two million, one hundred eleven thousand, seven hundred forty-two".