1421514444 has 96 divisors (see below), whose sum is σ = 3905298432. Its totient is φ = 393984000.

The previous prime is 1421514443. The next prime is 1421514461. The reversal of 1421514444 is 4444151241.

It is not an unprimeable number, because it can be changed into a prime (1421514443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 656724 + ... + 658884.

It is an arithmetic number, because the mean of its divisors is an integer number (40680192).

Almost surely, 2^1421514444 is an apocalyptic number.

1421514444 is a gapful number since it is divisible by the number (14) 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 1421514444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1952649216).

1421514444 is an abundant number, since it is smaller than the sum of its proper divisors (2483783988).

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

1421514444 is a wasteful number, since it uses less digits than its factorization.

1421514444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407 (or 2405 counting only the distinct ones).

The product of its digits is 10240, while the sum is 30.

The square root of 1421514444 is about 37702.9765933673. The cubic root of 1421514444 is about 1124.3903050917.

Adding to 1421514444 its reverse (4444151241), we get a palindrome (5865665685).

The spelling of 1421514444 in words is "one billion, four hundred twenty-one million, five hundred fourteen thousand, four hundred forty-four".