1772442 has 48 divisors (see below), whose sum is σ = 4560192. Its totient is φ = 505440.

The previous prime is 1772423. The next prime is 1772461. The reversal of 1772442 is 2442771.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1772423) and next prime (1772461).

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

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 23 ways as a sum of consecutive naturals, for example, 3142 + ... + 3662.

It is an arithmetic number, because the mean of its divisors is an integer number (95004).

2^1772442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1772442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2280096).

1772442 is an abundant number, since it is smaller than the sum of its proper divisors (2787750).

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

1772442 is an equidigital number, since it uses as much as digits as its factorization.

1772442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545 (or 533 counting only the distinct ones).

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

The square root of 1772442 is about 1331.3309130340. The cubic root of 1772442 is about 121.0200545045.

It can be divided in two parts, 17724 and 42, that added together give a triangular number (17766 = T₁₈₈).

The spelling of 1772442 in words is "one million, seven hundred seventy-two thousand, four hundred forty-two".