1982279429 has 8 divisors (see below), whose sum is σ = 2155900152. Its totient is φ = 1811678400.

The previous prime is 1982279419. The next prime is 1982279501. The reversal of 1982279429 is 9249722891.

It can be written as a sum of positive squares in 4 ways, for example, as 743380225 + 1238899204 = 27265^2 + 35198^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1982279429 - 2²⁴ = 1965502213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982279419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753554 + ... + 756179.

It is an arithmetic number, because the mean of its divisors is an integer number (269487519).

Almost surely, 2^1982279429 is an apocalyptic number.

It is an amenable number.

1982279429 is a deficient number, since it is larger than the sum of its proper divisors (173620723).

1982279429 is a wasteful number, since it uses less digits than its factorization.

1982279429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509847.

The product of its digits is 1306368, while the sum is 53.

The square root of 1982279429 is about 44522.7967338082. The cubic root of 1982279429 is about 1256.1889187763.

The spelling of 1982279429 in words is "one billion, nine hundred eighty-two million, two hundred seventy-nine thousand, four hundred twenty-nine".