40870751 has 2 divisors, whose sum is σ = 40870752. Its totient is φ = 40870750.

The previous prime is 40870723. The next prime is 40870757. The reversal of 40870751 is 15707804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40870751 - 2¹⁴ = 40854367 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40870757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20435375 + 20435376.

It is an arithmetic number, because the mean of its divisors is an integer number (20435376).

Almost surely, 2^40870751 is an apocalyptic number.

40870751 is a deficient number, since it is larger than the sum of its proper divisors (1).

40870751 is an equidigital number, since it uses as much as digits as its factorization.

40870751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 40870751 is about 6393.0236195403. The cubic root of 40870751 is about 344.4590022714.

The spelling of 40870751 in words is "forty million, eight hundred seventy thousand, seven hundred fifty-one".