1144077720 has 64 divisors (see below), whose sum is σ = 3436564320. Its totient is φ = 304702464.

The previous prime is 1144077709. The next prime is 1144077757. The reversal of 1144077720 is 277704411.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96772 + ... + 107948.

Almost surely, 2^1144077720 is an apocalyptic number.

1144077720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144077720 is an abundant number, since it is smaller than the sum of its proper divisors (2292486600).

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

1144077720 is a wasteful number, since it uses less digits than its factorization.

1144077720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12044 (or 12040 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 33.

The square root of 1144077720 is about 33824.2179510480. The cubic root of 1144077720 is about 1045.8879901313.

The spelling of 1144077720 in words is "one billion, one hundred forty-four million, seventy-seven thousand, seven hundred twenty".