40743261 has 24 divisors (see below), whose sum is σ = 63598080. Its totient is φ = 24986016.

The previous prime is 40743259. The next prime is 40743301. The reversal of 40743261 is 16234704.

It is not a de Polignac number, because 40743261 - 2¹ = 40743259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40743161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55680 + ... + 56406.

It is an arithmetic number, because the mean of its divisors is an integer number (2649920).

Almost surely, 2^40743261 is an apocalyptic number.

It is an amenable number.

40743261 is a deficient number, since it is larger than the sum of its proper divisors (22854819).

40743261 is a wasteful number, since it uses less digits than its factorization.

40743261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225 (or 1222 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 40743261 is about 6383.0448063600. The cubic root of 40743261 is about 344.1004669821.

Adding to 40743261 its reverse (16234704), we get a palindrome (56977965).

The spelling of 40743261 in words is "forty million, seven hundred forty-three thousand, two hundred sixty-one".