24742261 has 2 divisors, whose sum is σ = 24742262. Its totient is φ = 24742260.

The previous prime is 24742213. The next prime is 24742279. The reversal of 24742261 is 16224742.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15163236 + 9579025 = 3894^2 + 3095^2 .

It is a cyclic number.

It is not a de Polignac number, because 24742261 - 2¹¹ = 24740213 is a prime.

It is a super-2 number, since 2×24742261² = 1224358958784242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24742561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12371130 + 12371131.

It is an arithmetic number, because the mean of its divisors is an integer number (12371131).

Almost surely, 2^24742261 is an apocalyptic number.

It is an amenable number.

24742261 is a deficient number, since it is larger than the sum of its proper divisors (1).

24742261 is an equidigital number, since it uses as much as digits as its factorization.

24742261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 28.

The square root of 24742261 is about 4974.1593259565. The cubic root of 24742261 is about 291.3934561940.

The spelling of 24742261 in words is "twenty-four million, seven hundred forty-two thousand, two hundred sixty-one".