1427920884 has 216 divisors, whose sum is σ = 4131009792. Its totient is φ = 415134720.

The previous prime is 1427920867. The next prime is 1427920919. The reversal of 1427920884 is 4880297241.

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 12636412 + ... + 12636524.

Almost surely, 2^1427920884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1427920884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2065504896).

1427920884 is an abundant number, since it is smaller than the sum of its proper divisors (2703088908).

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

1427920884 is a wasteful number, since it uses less digits than its factorization.

1427920884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 1427920884 is about 37787.8404251950. The cubic root of 1427920884 is about 1126.0768971164.

The spelling of 1427920884 in words is "one billion, four hundred twenty-seven million, nine hundred twenty thousand, eight hundred eighty-four".