1946881 has 8 divisors (see below), whose sum is σ = 2075904. Its totient is φ = 1821600.

The previous prime is 1946869. The next prime is 1946899. The reversal of 1946881 is 1886491.

It is a happy number.

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

It is not a de Polignac number, because 1946881 - 2⁹ = 1946369 is a prime.

It is a super-2 number, since 2×1946881² = 7580691256322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1946881.

It is not an unprimeable number, because it can be changed into a prime (1946801) 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, 181 + ... + 1981.

It is an arithmetic number, because the mean of its divisors is an integer number (259488).

2^1946881 is an apocalyptic number.

It is an amenable number.

1946881 is a deficient number, since it is larger than the sum of its proper divisors (129023).

1946881 is a wasteful number, since it uses less digits than its factorization.

1946881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871.

The product of its digits is 13824, while the sum is 37.

The square root of 1946881 is about 1395.3067763040. The cubic root of 1946881 is about 124.8666524647.

The spelling of 1946881 in words is "one million, nine hundred forty-six thousand, eight hundred eighty-one".