1642263332 has 12 divisors (see below), whose sum is σ = 2892267420. Its totient is φ = 815901216.

The previous prime is 1642263317. The next prime is 1642263341. The reversal of 1642263332 is 2333622461.

It can be written as a sum of positive squares in 2 ways, for example, as 734084836 + 908178496 = 27094^2 + 30136^2 .

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, 1306907 + ... + 1308162.

It is an arithmetic number, because the mean of its divisors is an integer number (241022285).

Almost surely, 2^1642263332 is an apocalyptic number.

It is an amenable number.

1642263332 is a deficient number, since it is larger than the sum of its proper divisors (1250004088).

1642263332 is a wasteful number, since it uses less digits than its factorization.

1642263332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615230 (or 2615228 counting only the distinct ones).

The product of its digits is 31104, while the sum is 32.

The square root of 1642263332 is about 40524.8483279086. The cubic root of 1642263332 is about 1179.8159561665.

Adding to 1642263332 its reverse (2333622461), we get a palindrome (3975885793).

The spelling of 1642263332 in words is "one billion, six hundred forty-two million, two hundred sixty-three thousand, three hundred thirty-two".