1890535536 has 30 divisors (see below), whose sum is σ = 5290874160. Its totient is φ = 630178464.

The previous prime is 1890535489. The next prime is 1890535547. The reversal of 1890535536 is 6355350981.

1890535536 is a `hidden beast` number, since 1 + 8 + 90 + 5 + 3 + 553 + 6 = 666.

It is a super-2 number, since 2×1890535536² = 7148249225757614592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1890535491 and 1890535500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6564216 + ... + 6564503.

It is an arithmetic number, because the mean of its divisors is an integer number (176362472).

Almost surely, 2^1890535536 is an apocalyptic number.

1890535536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1890535536 is an abundant number, since it is smaller than the sum of its proper divisors (3400338624).

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

1890535536 is a wasteful number, since it uses less digits than its factorization.

1890535536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13128733 (or 13128724 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 45.

The square root of 1890535536 is about 43480.2890514771. The cubic root of 1890535536 is about 1236.5023565148.

The spelling of 1890535536 in words is "one billion, eight hundred ninety million, five hundred thirty-five thousand, five hundred thirty-six".