1020302604 has 72 divisors (see below), whose sum is σ = 2627660672. Its totient is φ = 333745920.

The previous prime is 1020302587. The next prime is 1020302669. The reversal of 1020302604 is 4062030201.

It is a happy number.

1020302604 is a `hidden beast` number, since 10 + 20 + 30 + 2 + 604 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 585174 + ... + 586914.

Almost surely, 2^1020302604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020302604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1313830336).

1020302604 is an abundant number, since it is smaller than the sum of its proper divisors (1607358068).

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

1020302604 is a wasteful number, since it uses less digits than its factorization.

1020302604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047 (or 2042 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1020302604 is about 31942.1759434137. The cubic root of 1020302604 is about 1006.7222448348.

Adding to 1020302604 its reverse (4062030201), we get a palindrome (5082332805).

The spelling of 1020302604 in words is "one billion, twenty million, three hundred two thousand, six hundred four".