1926081 has 6 divisors (see below), whose sum is σ = 2782130. Its totient is φ = 1284048.

The previous prime is 1926079. The next prime is 1926097. The reversal of 1926081 is 1806291.

It can be written as a sum of positive squares in only one way, i.e., 1245456 + 680625 = 1116^2 + 825^2 .

It is not a de Polignac number, because 1926081 - 2¹ = 1926079 is a prime.

It is a super-2 number, since 2×1926081² = 7419576037122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1926031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106996 + ... + 107013.

2^1926081 is an apocalyptic number.

It is an amenable number.

1926081 is a deficient number, since it is larger than the sum of its proper divisors (856049).

1926081 is a wasteful number, since it uses less digits than its factorization.

1926081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214015 (or 214012 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1926081 is about 1387.8332032345. The cubic root of 1926081 is about 124.4203777924.

The spelling of 1926081 in words is "one million, nine hundred twenty-six thousand, eighty-one".