40254199 has 2 divisors, whose sum is σ = 40254200. Its totient is φ = 40254198.

The previous prime is 40254191. The next prime is 40254211. The reversal of 40254199 is 99145204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40254199 - 2³ = 40254191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40254191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20127099 + 20127100.

It is an arithmetic number, because the mean of its divisors is an integer number (20127100).

Almost surely, 2^40254199 is an apocalyptic number.

40254199 is a deficient number, since it is larger than the sum of its proper divisors (1).

40254199 is an equidigital number, since it uses as much as digits as its factorization.

40254199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 40254199 is about 6344.6196891540. The cubic root of 40254199 is about 342.7181170547.

The spelling of 40254199 in words is "forty million, two hundred fifty-four thousand, one hundred ninety-nine".