1043742249 has 45 divisors (see below), whose sum is σ = 1677223015. Its totient is φ = 625463520.

The previous prime is 1043742221. The next prime is 1043742283. The reversal of 1043742249 is 9422473401.

The square root of 1043742249 is 32307.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 200420649 + 843321600 = 14157^2 + 29040^2 .

It is not a de Polignac number, because 1043742249 - 2¹⁵ = 1043709481 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1043742299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 11727397 + ... + 11727485.

Almost surely, 2^1043742249 is an apocalyptic number.

1043742249 is the 32307-th square number.

1043742249 is the 16154-th centered octagonal number.

It is an amenable number.

1043742249 is a deficient number, since it is larger than the sum of its proper divisors (633480766).

1043742249 is an frugal number, since it uses more digits than its factorization.

1043742249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The cubic root of 1043742249 is about 1014.3731718231.

Multiplying 1043742249 by its sum of digits (36), we get a square (37574720964 = 193842²).

The spelling of 1043742249 in words is "one billion, forty-three million, seven hundred forty-two thousand, two hundred forty-nine".