1863942 has 16 divisors (see below), whose sum is σ = 3819312. Its totient is φ = 606080.

The previous prime is 1863941. The next prime is 1863971. The reversal of 1863942 is 2493681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1863941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3543 + ... + 4034.

It is an arithmetic number, because the mean of its divisors is an integer number (238707).

2^1863942 is an apocalyptic number.

1863942 is an abundant number, since it is smaller than the sum of its proper divisors (1955370).

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

1863942 is a wasteful number, since it uses less digits than its factorization.

1863942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7623.

The product of its digits is 10368, while the sum is 33.

The square root of 1863942 is about 1365.2626121007. The cubic root of 1863942 is about 123.0677133934.

It can be divided in two parts, 18639 and 42, that added together give a palindrome (18681).

The spelling of 1863942 in words is "one million, eight hundred sixty-three thousand, nine hundred forty-two".