1874381 has 4 divisors (see below), whose sum is σ = 1884000. Its totient is φ = 1864764.

The previous prime is 1874377. The next prime is 1874387. The reversal of 1874381 is 1834781.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1874381 - 2² = 1874377 is a prime.

It is a super-2 number, since 2×1874381² = 7026608266322, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1874387) 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, 4511 + ... + 4908.

It is an arithmetic number, because the mean of its divisors is an integer number (471000).

2^1874381 is an apocalyptic number.

It is an amenable number.

1874381 is a deficient number, since it is larger than the sum of its proper divisors (9619).

1874381 is an equidigital number, since it uses as much as digits as its factorization.

1874381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9618.

The product of its digits is 5376, while the sum is 32.

The square root of 1874381 is about 1369.0803482630. The cubic root of 1874381 is about 123.2970325761.

The spelling of 1874381 in words is "one million, eight hundred seventy-four thousand, three hundred eighty-one".