1900036845 has 80 divisors (see below), whose sum is σ = 3956734848. Its totient is φ = 854271360.

The previous prime is 1900036843. The next prime is 1900036871. The reversal of 1900036845 is 5486300091.

It is not a de Polignac number, because 1900036845 - 2¹ = 1900036843 is a prime.

It is a super-2 number, since 2×1900036845² = 7220280024715108050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900036843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 167442 + ... + 178428.

Almost surely, 2^1900036845 is an apocalyptic number.

1900036845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1900036845 is an abundant number, since it is smaller than the sum of its proper divisors (2056698003).

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

1900036845 is a wasteful number, since it uses less digits than its factorization.

1900036845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11072 (or 11063 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1900036845 is about 43589.4120744935. The cubic root of 1900036845 is about 1238.5703356888.

The spelling of 1900036845 in words is "one billion, nine hundred million, thirty-six thousand, eight hundred forty-five".