1142441202 has 64 divisors (see below), whose sum is σ = 2726092800. Its totient is φ = 312301440.

The previous prime is 1142441189. The next prime is 1142441221. The reversal of 1142441202 is 2021442411.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110949 + ... + 120807.

It is an arithmetic number, because the mean of its divisors is an integer number (42595200).

Almost surely, 2^1142441202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142441202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1363046400).

1142441202 is an abundant number, since it is smaller than the sum of its proper divisors (1583651598).

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

1142441202 is a wasteful number, since it uses less digits than its factorization.

1142441202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9991.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1142441202 is about 33800.0177810604. The cubic root of 1142441202 is about 1045.3890638627.

Adding to 1142441202 its reverse (2021442411), we get a palindrome (3163883613).

The spelling of 1142441202 in words is "one billion, one hundred forty-two million, four hundred forty-one thousand, two hundred two".