1900436836 has 27 divisors (see below), whose sum is σ = 3384289587. Its totient is φ = 933783480.

The previous prime is 1900436833. The next prime is 1900436897. The reversal of 1900436836 is 6386340091.

The square root of 1900436836 is 43594.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×1900436836² = 7223320335251381792, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1900436833) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6190195 + ... + 6190501.

Almost surely, 2^1900436836 is an apocalyptic number.

1900436836 is the 43594-th square number.

It is an amenable number.

1900436836 is a deficient number, since it is larger than the sum of its proper divisors (1483852751).

1900436836 is an frugal number, since it uses more digits than its factorization.

1900436836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The cubic root of 1900436836 is about 1238.6572431660.

The spelling of 1900436836 in words is "one billion, nine hundred million, four hundred thirty-six thousand, eight hundred thirty-six".