1442313240 has 32 divisors (see below), whose sum is σ = 4326940080. Its totient is φ = 384616832.

The previous prime is 1442313209. The next prime is 1442313251. The reversal of 1442313240 is 423132441.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1442313240.

It is a congruent number.

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, 6009519 + ... + 6009758.

Almost surely, 2^1442313240 is an apocalyptic number.

1442313240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1442313240 is an abundant number, since it is smaller than the sum of its proper divisors (2884626840).

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

1442313240 is a wasteful number, since it uses less digits than its factorization.

1442313240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12019291 (or 12019287 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1442313240 is about 37977.7993043304. The cubic root of 1442313240 is about 1129.8475895417.

Adding to 1442313240 its reverse (423132441), we get a palindrome (1865445681).

The spelling of 1442313240 in words is "one billion, four hundred forty-two million, three hundred thirteen thousand, two hundred forty".