1899068652 has 240 divisors, whose sum is σ = 5593940352. Its totient is φ = 558005760.

The previous prime is 1899068629. The next prime is 1899068671. The reversal of 1899068652 is 2568609981.

It is a happy number.

It is a super-3 number, since 3×1899068652³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10492002 + ... + 10492182.

Almost surely, 2^1899068652 is an apocalyptic number.

1899068652 is a gapful number since it is divisible by the number (12) 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 1899068652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2796970176).

1899068652 is an abundant number, since it is smaller than the sum of its proper divisors (3694871700).

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

1899068652 is a wasteful number, since it uses less digits than its factorization.

1899068652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The square root of 1899068652 is about 43578.3048316476. The cubic root of 1899068652 is about 1238.3599224230.

The spelling of 1899068652 in words is "one billion, eight hundred ninety-nine million, sixty-eight thousand, six hundred fifty-two".