40749259 has 2 divisors, whose sum is σ = 40749260. Its totient is φ = 40749258.

The previous prime is 40749239. The next prime is 40749287. The reversal of 40749259 is 95294704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40749259 - 2¹⁵ = 40716491 is a prime.

It is not a weakly prime, because it can be changed into another prime (40749229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20374629 + 20374630.

It is an arithmetic number, because the mean of its divisors is an integer number (20374630).

Almost surely, 2^40749259 is an apocalyptic number.

40749259 is a deficient number, since it is larger than the sum of its proper divisors (1).

40749259 is an equidigital number, since it uses as much as digits as its factorization.

40749259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 40749259 is about 6383.5146275387. The cubic root of 40749259 is about 344.1173516830.

The spelling of 40749259 in words is "forty million, seven hundred forty-nine thousand, two hundred fifty-nine".