1152220444 has 6 divisors (see below), whose sum is σ = 2016385784. Its totient is φ = 576110220.

The previous prime is 1152220429. The next prime is 1152220453. The reversal of 1152220444 is 4440222511.

It is a super-2 number, since 2×1152220444² = 2655223903143114272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144027552 + ... + 144027559.

Almost surely, 2^1152220444 is an apocalyptic number.

It is an amenable number.

1152220444 is a deficient number, since it is larger than the sum of its proper divisors (864165340).

1152220444 is a wasteful number, since it uses less digits than its factorization.

1152220444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288055115 (or 288055113 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 1152220444 is about 33944.3727884314. The cubic root of 1152220444 is about 1048.3634199369.

Adding to 1152220444 its reverse (4440222511), we get a palindrome (5592442955).

The spelling of 1152220444 in words is "one billion, one hundred fifty-two million, two hundred twenty thousand, four hundred forty-four".