1532990866 has 24 divisors (see below), whose sum is σ = 2614702860. Its totient is φ = 672782880.

The previous prime is 1532990863. The next prime is 1532990867. The reversal of 1532990866 is 6680992351.

It can be written as a sum of positive squares in 2 ways, for example, as 1491581641 + 41409225 = 38621^2 + 6435^2 .

It is not an unprimeable number, because it can be changed into a prime (1532990863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102201 + ... + 116236.

Almost surely, 2^1532990866 is an apocalyptic number.

1532990866 is a deficient number, since it is larger than the sum of its proper divisors (1081711994).

1532990866 is a wasteful number, since it uses less digits than its factorization.

1532990866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218490 (or 218479 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 49.

The square root of 1532990866 is about 39153.4272573934. The cubic root of 1532990866 is about 1153.0457049647.

The spelling of 1532990866 in words is "one billion, five hundred thirty-two million, nine hundred ninety thousand, eight hundred sixty-six".