1878532328 has 32 divisors (see below), whose sum is σ = 3620332200. Its totient is φ = 913151232.

The previous prime is 1878532321. The next prime is 1878532349. The reversal of 1878532328 is 8232358781.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1682476324 + 196056004 = 41018^2 + 14002^2 .

It is not an unprimeable number, because it can be changed into a prime (1878532321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670226 + ... + 673022.

Almost surely, 2^1878532328 is an apocalyptic number.

It is an amenable number.

1878532328 is a deficient number, since it is larger than the sum of its proper divisors (1741799872).

1878532328 is a wasteful number, since it uses less digits than its factorization.

1878532328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5109 (or 5105 counting only the distinct ones).

The product of its digits is 645120, while the sum is 47.

The square root of 1878532328 is about 43342.0388076057. The cubic root of 1878532328 is about 1233.8799042893.

The spelling of 1878532328 in words is "one billion, eight hundred seventy-eight million, five hundred thirty-two thousand, three hundred twenty-eight".