1421132782 has 8 divisors (see below), whose sum is σ = 2257093296. Its totient is φ = 668768352.

The previous prime is 1421132777. The next prime is 1421132789. The reversal of 1421132782 is 2872311241.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421132789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20898978 + ... + 20899045.

It is an arithmetic number, because the mean of its divisors is an integer number (282136662).

Almost surely, 2^1421132782 is an apocalyptic number.

1421132782 is a deficient number, since it is larger than the sum of its proper divisors (835960514).

1421132782 is a wasteful number, since it uses less digits than its factorization.

1421132782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41798042.

The product of its digits is 5376, while the sum is 31.

The square root of 1421132782 is about 37697.9148229713. The cubic root of 1421132782 is about 1124.2896670090.

The spelling of 1421132782 in words is "one billion, four hundred twenty-one million, one hundred thirty-two thousand, seven hundred eighty-two".