1642337928 has 96 divisors (see below), whose sum is σ = 5545575360. Its totient is φ = 426579840.

The previous prime is 1642337927. The next prime is 1642337951. The reversal of 1642337928 is 8297332461.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1642337927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142575 + ... + 153662.

It is an arithmetic number, because the mean of its divisors is an integer number (57766410).

Almost surely, 2^1642337928 is an apocalyptic number.

1642337928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1642337928 is an abundant number, since it is smaller than the sum of its proper divisors (3903237432).

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

1642337928 is a wasteful number, since it uses less digits than its factorization.

1642337928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296267 (or 296260 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 1642337928 is about 40525.7686910440. The cubic root of 1642337928 is about 1179.8338193632.

The spelling of 1642337928 in words is "one billion, six hundred forty-two million, three hundred thirty-seven thousand, nine hundred twenty-eight".