1742634 has 40 divisors (see below), whose sum is σ = 4042368. Its totient is φ = 560520.

The previous prime is 1742617. The next prime is 1742647. The reversal of 1742634 is 4362471.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1742598 and 1742607.

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 19 ways as a sum of consecutive naturals, for example, 4849 + ... + 5195.

2^1742634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1742634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2021184).

1742634 is an abundant number, since it is smaller than the sum of its proper divisors (2299734).

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

1742634 is a wasteful number, since it uses less digits than its factorization.

1742634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 383 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 1742634 is about 1320.0886333879. The cubic root of 1742634 is about 120.3377982108.

The spelling of 1742634 in words is "one million, seven hundred forty-two thousand, six hundred thirty-four".