1771242 has 32 divisors (see below), whose sum is σ = 3953664. Its totient is φ = 524400.

The previous prime is 1771223. The next prime is 1771261. The reversal of 1771242 is 2421771.

It is an interprime number because it is at equal distance from previous prime (1771223) and next prime (1771261).

It is a nialpdrome in base 11.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2817 + ... + 3387.

It is an arithmetic number, because the mean of its divisors is an integer number (123552).

2^1771242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1771242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1976832).

1771242 is an abundant number, since it is smaller than the sum of its proper divisors (2182422).

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

1771242 is a wasteful number, since it uses less digits than its factorization.

1771242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634.

The product of its digits is 784, while the sum is 24.

The square root of 1771242 is about 1330.8801598942. The cubic root of 1771242 is about 120.9927368543.

The spelling of 1771242 in words is "one million, seven hundred seventy-one thousand, two hundred forty-two".