1600000428 has 48 divisors (see below), whose sum is σ = 4195328256. Its totient is φ = 470902080.

The previous prime is 1600000421. The next prime is 1600000487. The reversal of 1600000428 is 8240000061.

It is not an unprimeable number, because it can be changed into a prime (1600000421) 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 15 ways as a sum of consecutive naturals, for example, 219378 + ... + 226553.

It is an arithmetic number, because the mean of its divisors is an integer number (87402672).

Almost surely, 2^1600000428 is an apocalyptic number.

It is an amenable number.

1600000428 is an abundant number, since it is smaller than the sum of its proper divisors (2595327828).

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

1600000428 is a wasteful number, since it uses less digits than its factorization.

1600000428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445974 (or 445972 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1600000428 is about 40000.0053499996. The cubic root of 1600000428 is about 1169.6071995751.

Adding to 1600000428 its reverse (8240000061), we get a palindrome (9840000489).

The spelling of 1600000428 in words is "one billion, six hundred million, four hundred twenty-eight", and thus it is an aban number.