1639449282 has 16 divisors (see below), whose sum is σ = 3279834432. Its totient is φ = 546327120.

The previous prime is 1639449277. The next prime is 1639449293. The reversal of 1639449282 is 2829449361.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15094 + ... + 59217.

It is an arithmetic number, because the mean of its divisors is an integer number (204989652).

Almost surely, 2^1639449282 is an apocalyptic number.

1639449282 is an abundant number, since it is smaller than the sum of its proper divisors (1640385150).

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

1639449282 is a wasteful number, since it uses less digits than its factorization.

1639449282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77993.

The product of its digits is 746496, while the sum is 48.

The square root of 1639449282 is about 40490.1133858625. The cubic root of 1639449282 is about 1179.1416917406.

The spelling of 1639449282 in words is "one billion, six hundred thirty-nine million, four hundred forty-nine thousand, two hundred eighty-two".