40040258 has 8 divisors (see below), whose sum is σ = 63221520. Its totient is φ = 18966420.

The previous prime is 40040257. The next prime is 40040269. The reversal of 40040258 is 85204004.

40040258 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (40040257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526808 + ... + 526883.

It is an arithmetic number, because the mean of its divisors is an integer number (7902690).

Almost surely, 2^40040258 is an apocalyptic number.

40040258 is a deficient number, since it is larger than the sum of its proper divisors (23181262).

40040258 is a wasteful number, since it uses less digits than its factorization.

40040258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053712.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 40040258 is about 6327.7371942899. The cubic root of 40040258 is about 342.1098845517.

The spelling of 40040258 in words is "forty million, forty thousand, two hundred fifty-eight".