1426505280 has 112 divisors (see below), whose sum is σ = 4576145280. Its totient is φ = 376455168.

The previous prime is 1426505231. The next prime is 1426505281. The reversal of 1426505280 is 825056241.

It is not an unprimeable number, because it can be changed into a prime (1426505281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85461 + ... + 100779.

It is an arithmetic number, because the mean of its divisors is an integer number (40858440).

Almost surely, 2^1426505280 is an apocalyptic number.

1426505280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1426505280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2288072640).

1426505280 is an abundant number, since it is smaller than the sum of its proper divisors (3149640000).

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

1426505280 is a wasteful number, since it uses less digits than its factorization.

1426505280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15436 (or 15426 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 1426505280 is about 37769.1048345073. The cubic root of 1426505280 is about 1125.7046528638.

The spelling of 1426505280 in words is "one billion, four hundred twenty-six million, five hundred five thousand, two hundred eighty".