1020063604 has 12 divisors (see below), whose sum is σ = 2040127264. Its totient is φ = 437170104.

The previous prime is 1020063581. The next prime is 1020063613. The reversal of 1020063604 is 4063600201.

1020063604 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18215394 + ... + 18215449.

Almost surely, 2^1020063604 is an apocalyptic number.

1020063604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1020063604 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1020063604 is a wasteful number, since it uses less digits than its factorization.

1020063604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36430854 (or 36430852 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1020063604 is about 31938.4345890653. The cubic root of 1020063604 is about 1006.6436324033.

Adding to 1020063604 its reverse (4063600201), we get a palindrome (5083663805).

The spelling of 1020063604 in words is "one billion, twenty million, sixty-three thousand, six hundred four".