1145444742 has 48 divisors (see below), whose sum is σ = 2744960400. Its totient is φ = 342916416.

The previous prime is 1145444731. The next prime is 1145444747. The reversal of 1145444742 is 2474445411.

1145444742 is a `hidden beast` number, since 1 + 145 + 44 + 474 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1145444697 and 1145444706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145444747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57492 + ... + 74807.

It is an arithmetic number, because the mean of its divisors is an integer number (57186675).

Almost surely, 2^1145444742 is an apocalyptic number.

1145444742 is an abundant number, since it is smaller than the sum of its proper divisors (1599515658).

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

1145444742 is a wasteful number, since it uses less digits than its factorization.

1145444742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132357 (or 132354 counting only the distinct ones).

The product of its digits is 71680, while the sum is 36.

The square root of 1145444742 is about 33844.4196581948. The cubic root of 1145444742 is about 1046.3043904013.

The spelling of 1145444742 in words is "one billion, one hundred forty-five million, four hundred forty-four thousand, seven hundred forty-two".