1140144402 has 16 divisors (see below), whose sum is σ = 2303798112. Its totient is φ = 376129920.

The previous prime is 1140144371. The next prime is 1140144403. The reversal of 1140144402 is 2044410411.

It is not an unprimeable number, because it can be changed into a prime (1140144403) 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, 978924 + ... + 980087.

It is an arithmetic number, because the mean of its divisors is an integer number (143987382).

Almost surely, 2^1140144402 is an apocalyptic number.

1140144402 is an abundant number, since it is smaller than the sum of its proper divisors (1163653710).

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

1140144402 is a wasteful number, since it uses less digits than its factorization.

1140144402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959113.

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

The square root of 1140144402 is about 33766.0243736215. The cubic root of 1140144402 is about 1044.6880327590.

Adding to 1140144402 its reverse (2044410411), we get a palindrome (3184554813).

The spelling of 1140144402 in words is "one billion, one hundred forty million, one hundred forty-four thousand, four hundred two".