1642240282 has 8 divisors (see below), whose sum is σ = 2491038900. Its totient is φ = 811893984.

The previous prime is 1642240267. The next prime is 1642240289. The reversal of 1642240282 is 2820422461.

It can be written as a sum of positive squares in 2 ways, for example, as 1639521081 + 2719201 = 40491^2 + 1649^2 .

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 (1642240289) 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, 4612857 + ... + 4613212.

Almost surely, 2^1642240282 is an apocalyptic number.

1642240282 is a deficient number, since it is larger than the sum of its proper divisors (848798618).

1642240282 is an equidigital number, since it uses as much as digits as its factorization.

1642240282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9226160.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 1642240282 is about 40524.5639334959. The cubic root of 1642240282 is about 1179.8104363687.

The spelling of 1642240282 in words is "one billion, six hundred forty-two million, two hundred forty thousand, two hundred eighty-two".