1063604538 has 24 divisors (see below), whose sum is σ = 2327297076. Its totient is φ = 351024000.

The previous prime is 1063604537. The next prime is 1063604539. The reversal of 1063604538 is 8354063601.

1063604538 is a `hidden beast` number, since 1 + 0 + 63 + 60 + 4 + 538 = 666.

It is an interprime number because it is at equal distance from previous prime (1063604537) and next prime (1063604539).

It can be written as a sum of positive squares in 2 ways, for example, as 1059307209 + 4297329 = 32547^2 + 2073^2 .

It is a super-2 number, since 2×1063604538² = 2262509226508386888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1063604533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 290703 + ... + 294338.

Almost surely, 2^1063604538 is an apocalyptic number.

1063604538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1063604538 is an abundant number, since it is smaller than the sum of its proper divisors (1263692538).

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

1063604538 is a wasteful number, since it uses less digits than its factorization.

1063604538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585150 (or 585147 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1063604538 is about 32612.9504645011. The cubic root of 1063604538 is about 1020.7672485637.

The spelling of 1063604538 in words is "one billion, sixty-three million, six hundred four thousand, five hundred thirty-eight".