1868470544 has 30 divisors (see below), whose sum is σ = 3845648394. Its totient is φ = 879278080.

The previous prime is 1868470543. The next prime is 1868470547. The reversal of 1868470544 is 4450748681.

It can be written as a sum of positive squares in 3 ways, for example, as 1141628944 + 726841600 = 33788^2 + 26960^2 .

It is not an unprimeable number, because it can be changed into a prime (1868470543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 197417 + ... + 206664.

Almost surely, 2^1868470544 is an apocalyptic number.

It is an amenable number.

1868470544 is an abundant number, since it is smaller than the sum of its proper divisors (1977177850).

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

1868470544 is a wasteful number, since it uses less digits than its factorization.

1868470544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404123 (or 404100 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 47.

The square root of 1868470544 is about 43225.8087720750. The cubic root of 1868470544 is about 1231.6729925664.

The spelling of 1868470544 in words is "one billion, eight hundred sixty-eight million, four hundred seventy thousand, five hundred forty-four".