1142504040 has 128 divisors (see below), whose sum is σ = 3697954560. Its totient is φ = 281309184.

The previous prime is 1142504017. The next prime is 1142504081. The reversal of 1142504040 is 404052411.

It is a happy number.

1142504040 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1142503998 and 1142504016.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102837 + ... + 113403.

It is an arithmetic number, because the mean of its divisors is an integer number (28890270).

Almost surely, 2^1142504040 is an apocalyptic number.

1142504040 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 1142504040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1848977280).

1142504040 is an abundant number, since it is smaller than the sum of its proper divisors (2555450520).

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

1142504040 is a wasteful number, since it uses less digits than its factorization.

1142504040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10651 (or 10647 counting only the distinct ones).

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

The square root of 1142504040 is about 33800.9473240026. The cubic root of 1142504040 is about 1045.4082301164.

Adding to 1142504040 its reverse (404052411), we get a palindrome (1546556451).

The spelling of 1142504040 in words is "one billion, one hundred forty-two million, five hundred four thousand, forty".