1004552020 has 24 divisors (see below), whose sum is σ = 2139274368. Its totient is φ = 396160800.

The previous prime is 1004552011. The next prime is 1004552023. The reversal of 1004552020 is 202554001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004552023) 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 7 ways as a sum of consecutive naturals, for example, 352296 + ... + 355135.

It is an arithmetic number, because the mean of its divisors is an integer number (89136432).

Almost surely, 2^1004552020 is an apocalyptic number.

1004552020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004552020 is an abundant number, since it is smaller than the sum of its proper divisors (1134722348).

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

1004552020 is a wasteful number, since it uses less digits than its factorization.

1004552020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707511 (or 707509 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1004552020 is about 31694.6686368544. The cubic root of 1004552020 is about 1001.5150434841.

The spelling of 1004552020 in words is "one billion, four million, five hundred fifty-two thousand, twenty".