1886157056 has 144 divisors (see below), whose sum is σ = 4677980160. Its totient is φ = 740689920.

The previous prime is 1886157041. The next prime is 1886157059. The reversal of 1886157056 is 6507516881.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1886157056.

It is not an unprimeable number, because it can be changed into a prime (1886157059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1054595 + ... + 1056381.

Almost surely, 2^1886157056 is an apocalyptic number.

1886157056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1886157056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2338990080).

1886157056 is an abundant number, since it is smaller than the sum of its proper divisors (2791823104).

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

1886157056 is a wasteful number, since it uses less digits than its factorization.

1886157056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860 (or 1846 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 47.

The square root of 1886157056 is about 43429.9096936662. The cubic root of 1886157056 is about 1235.5470388761.

The spelling of 1886157056 in words is "one billion, eight hundred eighty-six million, one hundred fifty-seven thousand, fifty-six".