1421065296 has 300 divisors, whose sum is σ = 4886862816. Its totient is φ = 390510720.

The previous prime is 1421065273. The next prime is 1421065301. The reversal of 1421065296 is 6925601241.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1421065296.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 8718111 + ... + 8718273.

Almost surely, 2^1421065296 is an apocalyptic number.

1421065296 is a gapful number since it is divisible by the number (16) 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 1421065296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2443431408).

1421065296 is an abundant number, since it is smaller than the sum of its proper divisors (3465797520).

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

1421065296 is a wasteful number, since it uses less digits than its factorization.

1421065296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1421065296 is about 37697.0197230497. The cubic root of 1421065296 is about 1124.2718701701.

The spelling of 1421065296 in words is "one billion, four hundred twenty-one million, sixty-five thousand, two hundred ninety-six".