1153440242 has 16 divisors (see below), whose sum is σ = 1859280480. Its totient is φ = 534692928.

The previous prime is 1153440241. The next prime is 1153440269. The reversal of 1153440242 is 2420443511.

It is not an unprimeable number, because it can be changed into a prime (1153440241) 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, 250892 + ... + 255447.

It is an arithmetic number, because the mean of its divisors is an integer number (116205030).

Almost surely, 2^1153440242 is an apocalyptic number.

1153440242 is a deficient number, since it is larger than the sum of its proper divisors (705840238).

1153440242 is a wasteful number, since it uses less digits than its factorization.

1153440242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506425.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1153440242 is about 33962.3356381742. The cubic root of 1153440242 is about 1048.7332393902.

Adding to 1153440242 its reverse (2420443511), we get a palindrome (3573883753).

The spelling of 1153440242 in words is "one billion, one hundred fifty-three million, four hundred forty thousand, two hundred forty-two".