1899001022 has 8 divisors (see below), whose sum is σ = 2896781400. Its totient is φ = 933407224.

The previous prime is 1899001001. The next prime is 1899001057. The reversal of 1899001022 is 2201009981.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1899001022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8046497 + ... + 8046732.

It is an arithmetic number, because the mean of its divisors is an integer number (362097675).

Almost surely, 2^1899001022 is an apocalyptic number.

1899001022 is a deficient number, since it is larger than the sum of its proper divisors (997780378).

1899001022 is a wasteful number, since it uses less digits than its factorization.

1899001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16093290.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 1899001022 is about 43577.5288652305. The cubic root of 1899001022 is about 1238.3452220109.

The spelling of 1899001022 in words is "one billion, eight hundred ninety-nine million, one thousand, twenty-two".