1889400052 has 24 divisors (see below), whose sum is σ = 3488839200. Its totient is φ = 892827936.

The previous prime is 1889400049. The next prime is 1889400053. The reversal of 1889400052 is 2500049881.

It is a junction number, because it is equal to n+sod(n) for n = 1889399984 and 1889400020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1889400053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2178 + ... + 61510.

It is an arithmetic number, because the mean of its divisors is an integer number (145368300).

Almost surely, 2^1889400052 is an apocalyptic number.

It is an amenable number.

1889400052 is a deficient number, since it is larger than the sum of its proper divisors (1599439148).

1889400052 is a wasteful number, since it uses less digits than its factorization.

1889400052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59775 (or 59773 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 1889400052 is about 43467.2296333686. The cubic root of 1889400052 is about 1236.2547529826.

The spelling of 1889400052 in words is "one billion, eight hundred eighty-nine million, four hundred thousand, fifty-two".