40126458 has 16 divisors (see below), whose sum is σ = 80369856. Its totient is φ = 13356000.

The previous prime is 40126453. The next prime is 40126469. The reversal of 40126458 is 85462104.

It is a super-2 number, since 2×40126458² = 3220265263251528, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40126453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43 + ... + 8958.

It is an arithmetic number, because the mean of its divisors is an integer number (5023116).

Almost surely, 2^40126458 is an apocalyptic number.

40126458 is an abundant number, since it is smaller than the sum of its proper divisors (40243398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40126458 is a wasteful number, since it uses less digits than its factorization.

40126458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9749.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 40126458 is about 6334.5448139547. The cubic root of 40126458 is about 342.3552104357.

The spelling of 40126458 in words is "forty million, one hundred twenty-six thousand, four hundred fifty-eight".