1894934900 has 18 divisors (see below), whose sum is σ = 4112008950. Its totient is φ = 757973920.

The previous prime is 1894934897. The next prime is 1894934911. The reversal of 1894934900 is 94394981.

It can be written as a sum of positive squares in 3 ways, for example, as 113081956 + 1781852944 = 10634^2 + 42212^2 .

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, 9474575 + ... + 9474774.

Almost surely, 2^1894934900 is an apocalyptic number.

1894934900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1894934900 is an abundant number, since it is smaller than the sum of its proper divisors (2217074050).

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

1894934900 is a wasteful number, since it uses less digits than its factorization.

1894934900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18949363 (or 18949356 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 1894934900 is about 43530.8499802152. The cubic root of 1894934900 is about 1237.4607462976.

The spelling of 1894934900 in words is "one billion, eight hundred ninety-four million, nine hundred thirty-four thousand, nine hundred".