40144199 has 4 divisors (see below), whose sum is σ = 40157664. Its totient is φ = 40130736.

The previous prime is 40144183. The next prime is 40144229. The reversal of 40144199 is 99144104.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40144199 - 2⁴ = 40144183 is a prime.

It is a super-2 number, since 2×40144199² = 3223113426703202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40144099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47 + ... + 8960.

It is an arithmetic number, because the mean of its divisors is an integer number (10039416).

Almost surely, 2^40144199 is an apocalyptic number.

40144199 is a deficient number, since it is larger than the sum of its proper divisors (13465).

40144199 is an equidigital number, since it uses as much as digits as its factorization.

40144199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13464.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 40144199 is about 6335.9449966047. The cubic root of 40144199 is about 342.4056578561.

The spelling of 40144199 in words is "forty million, one hundred forty-four thousand, one hundred ninety-nine".