1861062 has 32 divisors (see below), whose sum is σ = 4319232. Its totient is φ = 523584.

The previous prime is 1861061. The next prime is 1861081. The reversal of 1861062 is 2601681.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1861061) 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, 2763 + ... + 3369.

It is an arithmetic number, because the mean of its divisors is an integer number (134976).

2^1861062 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1861062, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2159616).

1861062 is an abundant number, since it is smaller than the sum of its proper divisors (2458170).

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

1861062 is a wasteful number, since it uses less digits than its factorization.

1861062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1861062 is about 1364.2074622285. The cubic root of 1861062 is about 123.0042962344.

The spelling of 1861062 in words is "one million, eight hundred sixty-one thousand, sixty-two".