1642796328 has 16 divisors (see below), whose sum is σ = 4106990880. Its totient is φ = 547598768.

The previous prime is 1642796327. The next prime is 1642796329. The reversal of 1642796328 is 8236972461.

It is an interprime number because it is at equal distance from previous prime (1642796327) and next prime (1642796329).

It is not an unprimeable number, because it can be changed into a prime (1642796327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34224900 + ... + 34224947.

It is an arithmetic number, because the mean of its divisors is an integer number (256686930).

Almost surely, 2^1642796328 is an apocalyptic number.

It is an amenable number.

1642796328 is an abundant number, since it is smaller than the sum of its proper divisors (2464194552).

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

1642796328 is a wasteful number, since it uses less digits than its factorization.

1642796328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68449856 (or 68449852 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 1642796328 is about 40531.4239572211. The cubic root of 1642796328 is about 1179.9435786486.

The spelling of 1642796328 in words is "one billion, six hundred forty-two million, seven hundred ninety-six thousand, three hundred twenty-eight".