1900045524 has 72 divisors (see below), whose sum is σ = 5039136480. Its totient is φ = 553843008.

The previous prime is 1900045517. The next prime is 1900045541. The reversal of 1900045524 is 4255400091.

It is a super-2 number, since 2×1900045524² = 7220345986544869152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1900045491 and 1900045500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39447 + ... + 73185.

Almost surely, 2^1900045524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1900045524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2519568240).

1900045524 is an abundant number, since it is smaller than the sum of its proper divisors (3139090956).

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

1900045524 is a wasteful number, since it uses less digits than its factorization.

1900045524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33797 (or 33776 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1900045524 is about 43589.5116283723. The cubic root of 1900045524 is about 1238.5722215356.

The spelling of 1900045524 in words is "one billion, nine hundred million, forty-five thousand, five hundred twenty-four".