1442433240 has 96 divisors (see below), whose sum is σ = 4719546000. Its totient is φ = 382053120.

The previous prime is 1442433227. The next prime is 1442433253. The reversal of 1442433240 is 423342441.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1442433227) and next prime (1442433253).

It is a super-2 number, since 2×1442433240² = 4161227303713795200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40195 + ... + 67085.

Almost surely, 2^1442433240 is an apocalyptic number.

1442433240 is a gapful number since it is divisible by the number (10) 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 1442433240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2359773000).

1442433240 is an abundant number, since it is smaller than the sum of its proper divisors (3277112760).

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

1442433240 is a wasteful number, since it uses less digits than its factorization.

1442433240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27057 (or 27050 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 1442433240 is about 37979.3791418449. The cubic root of 1442433240 is about 1129.8789229920.

Adding to 1442433240 its reverse (423342441), we get a palindrome (1865775681).

The spelling of 1442433240 in words is "one billion, four hundred forty-two million, four hundred thirty-three thousand, two hundred forty".