1599993242 has 8 divisors (see below), whose sum is σ = 2400222132. Its totient is φ = 799919200.

The previous prime is 1599993193. The next prime is 1599993247. The reversal of 1599993242 is 2423999951.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1224370081 + 375623161 = 34991^2 + 19381^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1599993247) 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, 8009 + ... + 57132.

Almost surely, 2^1599993242 is an apocalyptic number.

1599993242 is a deficient number, since it is larger than the sum of its proper divisors (800228890).

1599993242 is a wasteful number, since it uses less digits than its factorization.

1599993242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77424.

The product of its digits is 1574640, while the sum is 53.

The square root of 1599993242 is about 39999.9155249108. The cubic root of 1599993242 is about 1169.6054485735.

The spelling of 1599993242 in words is "one billion, five hundred ninety-nine million, nine hundred ninety-three thousand, two hundred forty-two".