1144431774 has 32 divisors (see below), whose sum is σ = 2625223680. Its totient is φ = 369171000.

The previous prime is 1144431751. The next prime is 1144431779. The reversal of 1144431774 is 4771344411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144431779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340152 + ... + 343499.

It is an arithmetic number, because the mean of its divisors is an integer number (82038240).

Almost surely, 2^1144431774 is an apocalyptic number.

1144431774 is an abundant number, since it is smaller than the sum of its proper divisors (1480791906).

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

1144431774 is a wasteful number, since it uses less digits than its factorization.

1144431774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683693 (or 683687 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 1144431774 is about 33829.4512813909. The cubic root of 1144431774 is about 1045.9958681853.

The spelling of 1144431774 in words is "one billion, one hundred forty-four million, four hundred thirty-one thousand, seven hundred seventy-four".