1890453376 has 128 divisors (see below), whose sum is σ = 4448505600. Its totient is φ = 783433728.

The previous prime is 1890453371. The next prime is 1890453407. The reversal of 1890453376 is 6733540981.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1890453371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5355216 + ... + 5355568.

It is an arithmetic number, because the mean of its divisors is an integer number (34753950).

Almost surely, 2^1890453376 is an apocalyptic number.

1890453376 is a gapful number since it is divisible by the number (16) 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 1890453376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2224252800).

1890453376 is an abundant number, since it is smaller than the sum of its proper divisors (2558052224).

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

1890453376 is a wasteful number, since it uses less digits than its factorization.

1890453376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 1890453376 is about 43479.3442452850. The cubic root of 1890453376 is about 1236.4844440409.

The spelling of 1890453376 in words is "one billion, eight hundred ninety million, four hundred fifty-three thousand, three hundred seventy-six".