40328251 has 2 divisors, whose sum is σ = 40328252. Its totient is φ = 40328250.

The previous prime is 40328243. The next prime is 40328257. The reversal of 40328251 is 15282304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40328251 - 2³ = 40328243 is a prime.

It is not a weakly prime, because it can be changed into another prime (40328257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20164125 + 20164126.

It is an arithmetic number, because the mean of its divisors is an integer number (20164126).

Almost surely, 2^40328251 is an apocalyptic number.

40328251 is a deficient number, since it is larger than the sum of its proper divisors (1).

40328251 is an equidigital number, since it uses as much as digits as its factorization.

40328251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 40328251 is about 6350.4528185004. The cubic root of 40328251 is about 342.9281441332.

The spelling of 40328251 in words is "forty million, three hundred twenty-eight thousand, two hundred fifty-one".