1142405874 has 48 divisors (see below), whose sum is σ = 2564377920. Its totient is φ = 367123680.

The previous prime is 1142405861. The next prime is 1142405879. The reversal of 1142405874 is 4785042411.

It is a happy number.

1142405874 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1142405879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 493179 + ... + 495489.

It is an arithmetic number, because the mean of its divisors is an integer number (53424540).

Almost surely, 2^1142405874 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142405874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1282188960).

1142405874 is an abundant number, since it is smaller than the sum of its proper divisors (1421972046).

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

1142405874 is a wasteful number, since it uses less digits than its factorization.

1142405874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295 (or 3292 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 1142405874 is about 33799.4951737448. The cubic root of 1142405874 is about 1045.3782881409.

The spelling of 1142405874 in words is "one billion, one hundred forty-two million, four hundred five thousand, eight hundred seventy-four".