1600386020 has 12 divisors (see below), whose sum is σ = 3360810684. Its totient is φ = 640154400.

The previous prime is 1600386019. The next prime is 1600386061. The reversal of 1600386020 is 206830061.

It can be written as a sum of positive squares in 2 ways, for example, as 962116324 + 638269696 = 31018^2 + 25264^2 .

It is a super-2 number, since 2×1600386020² = 5122470826022880800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40009631 + ... + 40009670.

It is an arithmetic number, because the mean of its divisors is an integer number (280067557).

Almost surely, 2^1600386020 is an apocalyptic number.

1600386020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1600386020 is an abundant number, since it is smaller than the sum of its proper divisors (1760424664).

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

1600386020 is a wasteful number, since it uses less digits than its factorization.

1600386020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80019310 (or 80019308 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1600386020 is about 40004.8249589971. The cubic root of 1600386020 is about 1169.7011484990.

The spelling of 1600386020 in words is "one billion, six hundred million, three hundred eighty-six thousand, twenty".