40682251 has 2 divisors, whose sum is σ = 40682252. Its totient is φ = 40682250.

The previous prime is 40682197. The next prime is 40682263. The reversal of 40682251 is 15228604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40682251 - 2⁷ = 40682123 is a prime.

It is not a weakly prime, because it can be changed into another prime (40682951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20341125 + 20341126.

It is an arithmetic number, because the mean of its divisors is an integer number (20341126).

Almost surely, 2^40682251 is an apocalyptic number.

40682251 is a deficient number, since it is larger than the sum of its proper divisors (1).

40682251 is an equidigital number, since it uses as much as digits as its factorization.

40682251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 40682251 is about 6378.2639487560. The cubic root of 40682251 is about 343.9286262370.

The spelling of 40682251 in words is "forty million, six hundred eighty-two thousand, two hundred fifty-one".