1899560012 has 48 divisors (see below), whose sum is σ = 3904320000. Its totient is φ = 791683200.

The previous prime is 1899560011. The next prime is 1899560027. The reversal of 1899560012 is 2100659981.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (1899560011) 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, 377489 + ... + 382487.

It is an arithmetic number, because the mean of its divisors is an integer number (81340000).

Almost surely, 2^1899560012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1899560012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1952160000).

1899560012 is an abundant number, since it is smaller than the sum of its proper divisors (2004759988).

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

1899560012 is a wasteful number, since it uses less digits than its factorization.

1899560012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5382 (or 5380 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 41.

The square root of 1899560012 is about 43583.9421346899. The cubic root of 1899560012 is about 1238.4667165367.

The spelling of 1899560012 in words is "one billion, eight hundred ninety-nine million, five hundred sixty thousand, twelve".