1442245520 has 40 divisors (see below), whose sum is σ = 3435014520. Its totient is φ = 562826240.

The previous prime is 1442245411. The next prime is 1442245531. The reversal of 1442245520 is 255422441.

It can be written as a sum of positive squares in 4 ways, for example, as 9168784 + 1433076736 = 3028^2 + 37856^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 216575 + ... + 223134.

It is an arithmetic number, because the mean of its divisors is an integer number (85875363).

Almost surely, 2^1442245520 is an apocalyptic number.

1442245520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1442245520 is an abundant number, since it is smaller than the sum of its proper divisors (1992769000).

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

1442245520 is a wasteful number, since it uses less digits than its factorization.

1442245520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439763 (or 439757 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 1442245520 is about 37976.9077203503. The cubic root of 1442245520 is about 1129.8299062641.

Adding to 1442245520 its reverse (255422441), we get a palindrome (1697667961).

The spelling of 1442245520 in words is "one billion, four hundred forty-two million, two hundred forty-five thousand, five hundred twenty".