1840863955 has 16 divisors (see below), whose sum is σ = 2673120960. Its totient is φ = 1188052992.

The previous prime is 1840863953. The next prime is 1840863971. The reversal of 1840863955 is 5593680481.

It is not a de Polignac number, because 1840863955 - 2¹ = 1840863953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1840863899 and 1840863908.

It is not an unprimeable number, because it can be changed into a prime (1840863953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1546350 + ... + 1547539.

It is an arithmetic number, because the mean of its divisors is an integer number (167070060).

Almost surely, 2^1840863955 is an apocalyptic number.

1840863955 is a deficient number, since it is larger than the sum of its proper divisors (832257005).

1840863955 is a wasteful number, since it uses less digits than its factorization.

1840863955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3093918.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The square root of 1840863955 is about 42905.2905245961. The cubic root of 1840863955 is about 1225.5768944587.

The spelling of 1840863955 in words is "one billion, eight hundred forty million, eight hundred sixty-three thousand, nine hundred fifty-five".