1142450040 has 64 divisors (see below), whose sum is σ = 3485462400. Its totient is φ = 299487872.

The previous prime is 1142450039. The next prime is 1142450051. The reversal of 1142450040 is 400542411.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1142449989 and 1142450016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73602 + ... + 87761.

It is an arithmetic number, because the mean of its divisors is an integer number (54460350).

Almost surely, 2^1142450040 is an apocalyptic number.

1142450040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142450040 is an abundant number, since it is smaller than the sum of its proper divisors (2343012360).

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

1142450040 is a wasteful number, since it uses less digits than its factorization.

1142450040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161436 (or 161432 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1142450040 is about 33800.1485203838. The cubic root of 1142450040 is about 1045.3917595885.

Adding to 1142450040 its reverse (400542411), we get a palindrome (1542992451).

The spelling of 1142450040 in words is "one billion, one hundred forty-two million, four hundred fifty thousand, forty".