1421063280 has 720 divisors, whose sum is σ = 6289972416. Its totient is φ = 279797760.

The previous prime is 1421063173. The next prime is 1421063299. The reversal of 1421063280 is 823601241.

1421063280 is a `hidden beast` number, since 1 + 4 + 21 + 0 + 632 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 34660060 + ... + 34660100.

Almost surely, 2^1421063280 is an apocalyptic number.

1421063280 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 1421063280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3144986208).

1421063280 is an abundant number, since it is smaller than the sum of its proper divisors (4868909136).

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

1421063280 is a wasteful number, since it uses less digits than its factorization.

1421063280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1421063280 is about 37696.9929835259. The cubic root of 1421063280 is about 1124.2713385189.

The spelling of 1421063280 in words is "one billion, four hundred twenty-one million, sixty-three thousand, two hundred eighty".