1742427 has 6 divisors (see below), whose sum is σ = 2516852. Its totient is φ = 1161612.

The previous prime is 1742423. The next prime is 1742443. The reversal of 1742427 is 7242471.

It is a happy number.

It is not a de Polignac number, because 1742427 - 2² = 1742423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1742427.

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

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 96793 + ... + 96810.

2^1742427 is an apocalyptic number.

1742427 is a deficient number, since it is larger than the sum of its proper divisors (774425).

1742427 is a wasteful number, since it uses less digits than its factorization.

1742427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193609 (or 193606 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 1742427 is about 1320.0102272331. The cubic root of 1742427 is about 120.3330332189. Note that the first 3 decimals are identical.

Subtracting from 1742427 its sum of digits (27), we obtain a square (1742400 = 1320²).

Adding to 1742427 its reverse (7242471), we get a palindrome (8984898).

It can be divided in two parts, 174 and 2427, that added together give a square (2601 = 51²).

The spelling of 1742427 in words is "one million, seven hundred forty-two thousand, four hundred twenty-seven".