1881974 has 8 divisors (see below), whose sum is σ = 2883168. Its totient is φ = 920920.

The previous prime is 1881961. The next prime is 1881983. The reversal of 1881974 is 4791881.

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

It is a super-2 number, since 2×1881974² = 7083652273352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9917 + ... + 10104.

It is an arithmetic number, because the mean of its divisors is an integer number (360396).

2^1881974 is an apocalyptic number.

1881974 is a deficient number, since it is larger than the sum of its proper divisors (1001194).

1881974 is a wasteful number, since it uses less digits than its factorization.

1881974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20070.

The product of its digits is 16128, while the sum is 38.

The square root of 1881974 is about 1371.8505749534. The cubic root of 1881974 is about 123.4632977859.

The spelling of 1881974 in words is "one million, eight hundred eighty-one thousand, nine hundred seventy-four".