1873888385 has 8 divisors (see below), whose sum is σ = 2250729960. Its totient is φ = 1497734784.

The previous prime is 1873888381. The next prime is 1873888391. The reversal of 1873888385 is 5838883781.

It can be written as a sum of positive squares in 4 ways, for example, as 177848896 + 1696039489 = 13336^2 + 41183^2 .

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 1873888385 - 2² = 1873888381 is a prime.

It is a super-2 number, since 2×1873888385² = 7022915358875816450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1873888381) 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, 165980 + ... + 176909.

It is an arithmetic number, because the mean of its divisors is an integer number (281341245).

Almost surely, 2^1873888385 is an apocalyptic number.

It is an amenable number.

1873888385 is a deficient number, since it is larger than the sum of its proper divisors (376841575).

1873888385 is a wasteful number, since it uses less digits than its factorization.

1873888385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343987.

The product of its digits is 10321920, while the sum is 59.

The square root of 1873888385 is about 43288.4324618021. The cubic root of 1873888385 is about 1232.8623020287.

The spelling of 1873888385 in words is "one billion, eight hundred seventy-three million, eight hundred eighty-eight thousand, three hundred eighty-five".