1142300240 has 20 divisors (see below), whose sum is σ = 2655848244. Its totient is φ = 456920064.

The previous prime is 1142300209. The next prime is 1142300249. The reversal of 1142300240 is 420032411.

It can be written as a sum of positive squares in 2 ways, for example, as 654950464 + 487349776 = 25592^2 + 22076^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142300249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7139297 + ... + 7139456.

Almost surely, 2^1142300240 is an apocalyptic number.

1142300240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142300240 is an abundant number, since it is smaller than the sum of its proper divisors (1513548004).

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

1142300240 is a wasteful number, since it uses less digits than its factorization.

1142300240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14278766 (or 14278760 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1142300240 is about 33797.9324811445. The cubic root of 1142300240 is about 1045.3460664072.

Adding to 1142300240 its reverse (420032411), we get a palindrome (1562332651).

The spelling of 1142300240 in words is "one billion, one hundred forty-two million, three hundred thousand, two hundred forty".