1742842 has 16 divisors (see below), whose sum is σ = 2736000. Its totient is φ = 831600.

The previous prime is 1742809. The next prime is 1742843. The reversal of 1742842 is 2482471.

It is a self number, because there is not a number n which added to its sum of digits gives 1742842.

It is not an unprimeable number, because it can be changed into a prime (1742843) 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, 8659 + ... + 8857.

It is an arithmetic number, because the mean of its divisors is an integer number (171000).

2^1742842 is an apocalyptic number.

1742842 is a deficient number, since it is larger than the sum of its proper divisors (993158).

1742842 is a wasteful number, since it uses less digits than its factorization.

1742842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381.

The product of its digits is 3584, while the sum is 28.

The square root of 1742842 is about 1320.1674136260. The cubic root of 1742842 is about 120.3425858419.

The spelling of 1742842 in words is "one million, seven hundred forty-two thousand, eight hundred forty-two".