1742442 has 32 divisors (see below), whose sum is σ = 3810240. Its totient is φ = 528000.

The previous prime is 1742423. The next prime is 1742443. The reversal of 1742442 is 2442471.

It is a super-2 number, since 2×1742442² = 6072208246728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1742443) 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 15 ways as a sum of consecutive naturals, for example, 6817 + ... + 7067.

It is an arithmetic number, because the mean of its divisors is an integer number (119070).

2^1742442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1742442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1905120).

1742442 is an abundant number, since it is smaller than the sum of its proper divisors (2067798).

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

1742442 is a wasteful number, since it uses less digits than its factorization.

1742442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358.

The product of its digits is 1792, while the sum is 24.

The square root of 1742442 is about 1320.0159089950. The cubic root of 1742442 is about 120.3333785209. Note that the first 4 decimals are identical.

The spelling of 1742442 in words is "one million, seven hundred forty-two thousand, four hundred forty-two".