40031258 has 8 divisors (see below), whose sum is σ = 60084180. Its totient is φ = 20003200.

The previous prime is 40031239. The next prime is 40031269. The reversal of 40031258 is 85213004.

It can be written as a sum of positive squares in 2 ways, for example, as 39778249 + 253009 = 6307^2 + 503^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1463 + ... + 9066.

Almost surely, 2^40031258 is an apocalyptic number.

40031258 is a deficient number, since it is larger than the sum of its proper divisors (20052922).

40031258 is a wasteful number, since it uses less digits than its factorization.

40031258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12432.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 40031258 is about 6327.0259996305. The cubic root of 40031258 is about 342.0842501874.

The spelling of 40031258 in words is "forty million, thirty-one thousand, two hundred fifty-eight".