1142345322 has 64 divisors (see below), whose sum is σ = 2764368000. Its totient is φ = 348292224.

The previous prime is 1142345317. The next prime is 1142345327. The reversal of 1142345322 is 2235432411.

It is an interprime number because it is at equal distance from previous prime (1142345317) and next prime (1142345327).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1142345327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10558 + ... + 48950.

It is an arithmetic number, because the mean of its divisors is an integer number (43193250).

Almost surely, 2^1142345322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142345322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1382184000).

1142345322 is an abundant number, since it is smaller than the sum of its proper divisors (1622022678).

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

1142345322 is a wasteful number, since it uses less digits than its factorization.

1142345322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38452 (or 38446 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 1142345322 is about 33798.5994088512. The cubic root of 1142345322 is about 1045.3598180957.

Adding to 1142345322 its reverse (2235432411), we get a palindrome (3377777733).

The spelling of 1142345322 in words is "one billion, one hundred forty-two million, three hundred forty-five thousand, three hundred twenty-two".