40575949 has 2 divisors, whose sum is σ = 40575950. Its totient is φ = 40575948.

The previous prime is 40575929. The next prime is 40575967. The reversal of 40575949 is 94957504.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34597924 + 5978025 = 5882^2 + 2445^2 .

It is a cyclic number.

It is not a de Polignac number, because 40575949 - 2⁵ = 40575917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40575929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20287974 + 20287975.

It is an arithmetic number, because the mean of its divisors is an integer number (20287975).

Almost surely, 2^40575949 is an apocalyptic number.

It is an amenable number.

40575949 is a deficient number, since it is larger than the sum of its proper divisors (1).

40575949 is an equidigital number, since it uses as much as digits as its factorization.

40575949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 40575949 is about 6369.9253527808. The cubic root of 40575949 is about 343.6288051435.

The spelling of 40575949 in words is "forty million, five hundred seventy-five thousand, nine hundred forty-nine".