1742426 has 8 divisors (see below), whose sum is σ = 2987040. Its totient is φ = 746748.

The previous prime is 1742423. The next prime is 1742443. The reversal of 1742426 is 6242471.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1742395 and 1742404.

It is not an unprimeable number, because it can be changed into a prime (1742423) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 62216 + ... + 62243.

It is an arithmetic number, because the mean of its divisors is an integer number (373380).

2^1742426 is an apocalyptic number.

1742426 is a deficient number, since it is larger than the sum of its proper divisors (1244614).

1742426 is a wasteful number, since it uses less digits than its factorization.

1742426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124468.

The product of its digits is 2688, while the sum is 26.

The square root of 1742426 is about 1320.0098484481. The cubic root of 1742426 is about 120.3330101987. Note that the first 3 decimals are identical.

Subtracting from 1742426 its sum of digits (26), we obtain a square (1742400 = 1320²).

Adding to 1742426 its reverse (6242471), we get a palindrome (7984897).

The spelling of 1742426 in words is "one million, seven hundred forty-two thousand, four hundred twenty-six".