1440420512 has 48 divisors (see below), whose sum is σ = 2900100672. Its totient is φ = 704071680.

The previous prime is 1440420479. The next prime is 1440420529. The reversal of 1440420512 is 2150240441.

It is a super-2 number, since 2×1440420512² = 4149622502780684288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254837 + ... + 260427.

It is an arithmetic number, because the mean of its divisors is an integer number (60418764).

Almost surely, 2^1440420512 is an apocalyptic number.

It is an amenable number.

1440420512 is an abundant number, since it is smaller than the sum of its proper divisors (1459680160).

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

1440420512 is an equidigital number, since it uses as much as digits as its factorization.

1440420512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5781 (or 5773 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1440420512 is about 37952.8722496730. The cubic root of 1440420512 is about 1129.3531453321.

Adding to 1440420512 its reverse (2150240441), we get a palindrome (3590660953).

The spelling of 1440420512 in words is "one billion, four hundred forty million, four hundred twenty thousand, five hundred twelve".