1144557774 has 24 divisors (see below), whose sum is σ = 2481367512. Its totient is φ = 381289680.

The previous prime is 1144557773. The next prime is 1144557787. The reversal of 1144557774 is 4777554411.

1144557774 is a `hidden beast` number, since 1 + 1 + 4 + 4 + 5 + 577 + 74 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144557773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13077 + ... + 49599.

It is an arithmetic number, because the mean of its divisors is an integer number (103390313).

Almost surely, 2^1144557774 is an apocalyptic number.

1144557774 is an abundant number, since it is smaller than the sum of its proper divisors (1336809738).

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

1144557774 is a wasteful number, since it uses less digits than its factorization.

1144557774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38272 (or 38269 counting only the distinct ones).

The product of its digits is 548800, while the sum is 45.

The square root of 1144557774 is about 33831.3135127798. The cubic root of 1144557774 is about 1046.0342542345.

The spelling of 1144557774 in words is "one billion, one hundred forty-four million, five hundred fifty-seven thousand, seven hundred seventy-four".