1899974124 has 48 divisors (see below), whose sum is σ = 5059000800. Its totient is φ = 616206528.

The previous prime is 1899974117. The next prime is 1899974143. The reversal of 1899974124 is 4214799981.

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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233739 + ... + 241730.

It is an arithmetic number, because the mean of its divisors is an integer number (105395850).

Almost surely, 2^1899974124 is an apocalyptic number.

It is an amenable number.

1899974124 is an abundant number, since it is smaller than the sum of its proper divisors (3159026676).

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

1899974124 is a wasteful number, since it uses less digits than its factorization.

1899974124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475519 (or 475511 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 1899974124 is about 43588.6926163197. The cubic root of 1899974124 is about 1238.5567069663.

The spelling of 1899974124 in words is "one billion, eight hundred ninety-nine million, nine hundred seventy-four thousand, one hundred twenty-four".