1144303402 has 16 divisors (see below), whose sum is σ = 1937066400. Its totient is φ = 502201840.

The previous prime is 1144303393. The next prime is 1144303409. The reversal of 1144303402 is 2043034411.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1144303409) 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, 896152 + ... + 897427.

It is an arithmetic number, because the mean of its divisors is an integer number (121066650).

Almost surely, 2^1144303402 is an apocalyptic number.

1144303402 is a deficient number, since it is larger than the sum of its proper divisors (792762998).

1144303402 is a wasteful number, since it uses less digits than its factorization.

1144303402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793621.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1144303402 is about 33827.5538873268. The cubic root of 1144303402 is about 1045.9567566060.

Adding to 1144303402 its reverse (2043034411), we get a palindrome (3187337813).

The spelling of 1144303402 in words is "one billion, one hundred forty-four million, three hundred three thousand, four hundred two".