40225943 has 2 divisors, whose sum is σ = 40225944. Its totient is φ = 40225942.

The previous prime is 40225921. The next prime is 40225957. The reversal of 40225943 is 34952204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40225943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40225243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20112971 + 20112972.

It is an arithmetic number, because the mean of its divisors is an integer number (20112972).

Almost surely, 2^40225943 is an apocalyptic number.

40225943 is a deficient number, since it is larger than the sum of its proper divisors (1).

40225943 is an equidigital number, since it uses as much as digits as its factorization.

40225943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 40225943 is about 6342.3925296374. The cubic root of 40225943 is about 342.6379091919.

The spelling of 40225943 in words is "forty million, two hundred twenty-five thousand, nine hundred forty-three".