1142877960 has 288 divisors, whose sum is σ = 4389802560. Its totient is φ = 257064192.

The previous prime is 1142877937. The next prime is 1142877977. The reversal of 1142877960 is 697782411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1181397 + ... + 1182363.

It is an arithmetic number, because the mean of its divisors is an integer number (15242370).

Almost surely, 2^1142877960 is an apocalyptic number.

1142877960 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 1142877960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2194901280).

1142877960 is an abundant number, since it is smaller than the sum of its proper divisors (3246924600).

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

1142877960 is a wasteful number, since it uses less digits than its factorization.

1142877960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065 (or 1051 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 1142877960 is about 33806.4780774336. The cubic root of 1142877960 is about 1045.5222651350.

The spelling of 1142877960 in words is "one billion, one hundred forty-two million, eight hundred seventy-seven thousand, nine hundred sixty".