1881630073 has 8 divisors (see below), whose sum is σ = 1900939040. Its totient is φ = 1862403840.

The previous prime is 1881630071. The next prime is 1881630103. The reversal of 1881630073 is 3700361881.

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

It is a cyclic number.

It is not a de Polignac number, because 1881630073 - 2¹ = 1881630071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1881630071) 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, 25561 + ... + 66457.

It is an arithmetic number, because the mean of its divisors is an integer number (237617380).

Almost surely, 2^1881630073 is an apocalyptic number.

It is an amenable number.

1881630073 is a deficient number, since it is larger than the sum of its proper divisors (19308967).

1881630073 is a wasteful number, since it uses less digits than its factorization.

1881630073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41367.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1881630073 is about 43377.7601196742. The cubic root of 1881630073 is about 1234.5577643716.

The spelling of 1881630073 in words is "one billion, eight hundred eighty-one million, six hundred thirty thousand, seventy-three".