1141664448 has 56 divisors (see below), whose sum is σ = 3090923968. Its totient is φ = 371702016.

The previous prime is 1141664443. The next prime is 1141664449. The reversal of 1141664448 is 8444661411.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1141664441) 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, 60886 + ... + 77397.

Almost surely, 2^1141664448 is an apocalyptic number.

It is an amenable number.

1141664448 is an abundant number, since it is smaller than the sum of its proper divisors (1949259520).

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

1141664448 is a wasteful number, since it uses less digits than its factorization.

1141664448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138341 (or 138331 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

The square root of 1141664448 is about 33788.5253895461. The cubic root of 1141664448 is about 1045.1520876298.

The spelling of 1141664448 in words is "one billion, one hundred forty-one million, six hundred sixty-four thousand, four hundred forty-eight".