1142247474 has 16 divisors (see below), whose sum is σ = 2538327840. Its totient is φ = 380749140.

The previous prime is 1142247473. The next prime is 1142247479. The reversal of 1142247474 is 4747422411.

1142247474 is a `hidden beast` number, since 1 + 142 + 2 + 47 + 474 = 666.

It is not an unprimeable number, because it can be changed into a prime (1142247473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10576312 + ... + 10576419.

It is an arithmetic number, because the mean of its divisors is an integer number (158645490).

Almost surely, 2^1142247474 is an apocalyptic number.

1142247474 is an abundant number, since it is smaller than the sum of its proper divisors (1396080366).

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

1142247474 is a wasteful number, since it uses less digits than its factorization.

1142247474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21152742 (or 21152736 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 1142247474 is about 33797.1518622502. The cubic root of 1142247474 is about 1045.3299703529.

Adding to 1142247474 its reverse (4747422411), we get a palindrome (5889669885).

The spelling of 1142247474 in words is "one billion, one hundred forty-two million, two hundred forty-seven thousand, four hundred seventy-four".