1855368 has 48 divisors (see below), whose sum is σ = 5108220. Its totient is φ = 608256.

The previous prime is 1855361. The next prime is 1855393. The reversal of 1855368 is 8635581.

It can be written as a sum of positive squares in 2 ways, for example, as 1855044 + 324 = 1362^2 + 18^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1855361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5080 + ... + 5432.

2^1855368 is an apocalyptic number.

1855368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1855368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2554110).

1855368 is an abundant number, since it is smaller than the sum of its proper divisors (3252852).

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

1855368 is a wasteful number, since it uses less digits than its factorization.

1855368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 431 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 1855368 is about 1362.1189375381. The cubic root of 1855368 is about 122.8787224192.

The spelling of 1855368 in words is "one million, eight hundred fifty-five thousand, three hundred sixty-eight".