1381854 has 8 divisors (see below), whose sum is σ = 2763720. Its totient is φ = 460616.

The previous prime is 1381837. The next prime is 1381859. The reversal of 1381854 is 4581831.

It is a sphenic number, since it is the product of 3 distinct primes.

1381854 is an admirable number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115149 + ... + 115160.

It is an arithmetic number, because the mean of its divisors is an integer number (345465).

2^1381854 is an apocalyptic number.

1381854 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1381854 is a wasteful number, since it uses less digits than its factorization.

1381854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230314.

The product of its digits is 3840, while the sum is 30.

The square root of 1381854 is about 1175.5228623893. The cubic root of 1381854 is about 111.3834639440.

The spelling of 1381854 in words is "one million, three hundred eighty-one thousand, eight hundred fifty-four".