1144186408 has 8 divisors (see below), whose sum is σ = 2145349530. Its totient is φ = 572093200.

The previous prime is 1144186391. The next prime is 1144186427. The reversal of 1144186408 is 8046814411.

It can be written as a sum of positive squares in only one way, i.e., 1068113124 + 76073284 = 32682^2 + 8722^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71511643 + ... + 71511658.

Almost surely, 2^1144186408 is an apocalyptic number.

It is an amenable number.

1144186408 is a deficient number, since it is larger than the sum of its proper divisors (1001163122).

1144186408 is a wasteful number, since it uses less digits than its factorization.

1144186408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143023307 (or 143023303 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 1144186408 is about 33825.8245723589. The cubic root of 1144186408 is about 1045.9211090568.

The spelling of 1144186408 in words is "one billion, one hundred forty-four million, one hundred eighty-six thousand, four hundred eight".