1421242368 has 416 divisors, whose sum is σ = 4931899392. Its totient is φ = 353894400.

The previous prime is 1421242367. The next prime is 1421242387. The reversal of 1421242368 is 8632421241.

It is a tau number, because it is divible by the number of its divisors (416).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421242367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34664428 + ... + 34664468.

Almost surely, 2^1421242368 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 1421242368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2465949696).

1421242368 is an abundant number, since it is smaller than the sum of its proper divisors (3510657024).

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

1421242368 is a wasteful number, since it uses less digits than its factorization.

1421242368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 97 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 1421242368 is about 37699.3682705692. The cubic root of 1421242368 is about 1124.3185649047.

The spelling of 1421242368 in words is "one billion, four hundred twenty-one million, two hundred forty-two thousand, three hundred sixty-eight".