1855242 has 12 divisors (see below), whose sum is σ = 4019730. Its totient is φ = 618408.

The previous prime is 1855237. The next prime is 1855247. The reversal of 1855242 is 2425581.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1855237) and next prime (1855247).

It can be written as a sum of positive squares in only one way, i.e., 1279161 + 576081 = 1131^2 + 759^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1855247) 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, 51517 + ... + 51552.

2^1855242 is an apocalyptic number.

1855242 is an abundant number, since it is smaller than the sum of its proper divisors (2164488).

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

1855242 is a wasteful number, since it uses less digits than its factorization.

1855242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103077 (or 103074 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 1855242 is about 1362.0726852852. The cubic root of 1855242 is about 122.8759407483.

The spelling of 1855242 in words is "one million, eight hundred fifty-five thousand, two hundred forty-two".