1899116240 has 80 divisors (see below), whose sum is σ = 5343086592. Its totient is φ = 612820992.

The previous prime is 1899116201. The next prime is 1899116287. The reversal of 1899116240 is 426119981.

It is a tau number, because it is divible by the number of its divisors (80).

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, 90224 + ... + 109263.

Almost surely, 2^1899116240 is an apocalyptic number.

1899116240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1899116240 is an abundant number, since it is smaller than the sum of its proper divisors (3443970352).

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

1899116240 is a wasteful number, since it uses less digits than its factorization.

1899116240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199524 (or 199518 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 1899116240 is about 43578.8508338621. The cubic root of 1899116240 is about 1238.3702661916.

The spelling of 1899116240 in words is "one billion, eight hundred ninety-nine million, one hundred sixteen thousand, two hundred forty".