1742836 has 6 divisors (see below), whose sum is σ = 3049970. Its totient is φ = 871416.

The previous prime is 1742809. The next prime is 1742843. The reversal of 1742836 is 6382471.

It can be written as a sum of positive squares in only one way, i.e., 1587600 + 155236 = 1260^2 + 394^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1742798 and 1742807.

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, 217851 + ... + 217858.

2^1742836 is an apocalyptic number.

It is an amenable number.

1742836 is a deficient number, since it is larger than the sum of its proper divisors (1307134).

1742836 is a wasteful number, since it uses less digits than its factorization.

1742836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435713 (or 435711 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 1742836 is about 1320.1651411850. The cubic root of 1742836 is about 120.3424477425.

The spelling of 1742836 in words is "one million, seven hundred forty-two thousand, eight hundred thirty-six".