1989792282 has 32 divisors (see below), whose sum is σ = 4087065600. Its totient is φ = 645509168.

The previous prime is 1989792281. The next prime is 1989792289. The reversal of 1989792282 is 2822979891.

It is not an unprimeable number, because it can be changed into a prime (1989792281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30769 + ... + 70187.

It is an arithmetic number, because the mean of its divisors is an integer number (127720800).

Almost surely, 2^1989792282 is an apocalyptic number.

1989792282 is an abundant number, since it is smaller than the sum of its proper divisors (2097273318).

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

1989792282 is a wasteful number, since it uses less digits than its factorization.

1989792282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39650.

The product of its digits is 2612736, while the sum is 57.

The square root of 1989792282 is about 44607.0878000346. The cubic root of 1989792282 is about 1257.7739063720.

It can be divided in two parts, 1989792 and 282, that multiplied together give a square (561121344 = 23688²).

The spelling of 1989792282 in words is "one billion, nine hundred eighty-nine million, seven hundred ninety-two thousand, two hundred eighty-two".