1873666140 has 48 divisors (see below), whose sum is σ = 5248285728. Its totient is φ = 499451904.

The previous prime is 1873666061. The next prime is 1873666177. The reversal of 1873666140 is 416663781.

It is a junction number, because it is equal to n+sod(n) for n = 1873666092 and 1873666101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223464 + ... + 231696.

It is an arithmetic number, because the mean of its divisors is an integer number (109339286).

Almost surely, 2^1873666140 is an apocalyptic number.

1873666140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1873666140 is an abundant number, since it is smaller than the sum of its proper divisors (3374619588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1873666140 is a wasteful number, since it uses less digits than its factorization.

1873666140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12038 (or 12036 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 1873666140 is about 43285.8653604153. The cubic root of 1873666140 is about 1232.8135605424.

The spelling of 1873666140 in words is "one billion, eight hundred seventy-three million, six hundred sixty-six thousand, one hundred forty".