40819259 has 4 divisors (see below), whose sum is σ = 43959216. Its totient is φ = 37679304.

The previous prime is 40819243. The next prime is 40819271. The reversal of 40819259 is 95291804.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40819259 - 2⁴ = 40819243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40819459) 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, 1569959 + ... + 1569984.

It is an arithmetic number, because the mean of its divisors is an integer number (10989804).

Almost surely, 2^40819259 is an apocalyptic number.

40819259 is a deficient number, since it is larger than the sum of its proper divisors (3139957).

40819259 is a wasteful number, since it uses less digits than its factorization.

40819259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139956.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 40819259 is about 6388.9951479086. The cubic root of 40819259 is about 344.3142831550.

The spelling of 40819259 in words is "forty million, eight hundred nineteen thousand, two hundred fifty-nine".