1889920352 has 24 divisors (see below), whose sum is σ = 3721978512. Its totient is φ = 944656000.

The previous prime is 1889920339. The next prime is 1889920393. The reversal of 1889920352 is 2530299881.

It is a junction number, because it is equal to n+sod(n) for n = 1889920297 and 1889920306.

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, 117602 + ... + 132702.

It is an arithmetic number, because the mean of its divisors is an integer number (155082438).

Almost surely, 2^1889920352 is an apocalyptic number.

It is an amenable number.

1889920352 is a deficient number, since it is larger than the sum of its proper divisors (1832058160).

1889920352 is a wasteful number, since it uses less digits than its factorization.

1889920352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19022 (or 19014 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 1889920352 is about 43473.2141898894. The cubic root of 1889920352 is about 1236.3682218609.

The spelling of 1889920352 in words is "one billion, eight hundred eighty-nine million, nine hundred twenty thousand, three hundred fifty-two".