1144787464 has 16 divisors (see below), whose sum is σ = 2239801920. Its totient is φ = 547506960.

The previous prime is 1144787453. The next prime is 1144787467. The reversal of 1144787464 is 4647874411.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (1144787467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3110652 + ... + 3111019.

It is an arithmetic number, because the mean of its divisors is an integer number (139987620).

Almost surely, 2^1144787464 is an apocalyptic number.

It is an amenable number.

1144787464 is a deficient number, since it is larger than the sum of its proper divisors (1095014456).

1144787464 is a wasteful number, since it uses less digits than its factorization.

1144787464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6221700 (or 6221696 counting only the distinct ones).

The product of its digits is 602112, while the sum is 46.

The square root of 1144787464 is about 33834.7079786423. The cubic root of 1144787464 is about 1046.1042223168.

The spelling of 1144787464 in words is "one billion, one hundred forty-four million, seven hundred eighty-seven thousand, four hundred sixty-four".