40284558 has 24 divisors (see below), whose sum is σ = 88932168. Its totient is φ = 13174512.

The previous prime is 40284553. The next prime is 40284581. The reversal of 40284558 is 85548204.

40284558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40284558² = 3245691226510728, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40284553) 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 11 ways as a sum of consecutive naturals, for example, 20160 + ... + 22067.

It is an arithmetic number, because the mean of its divisors is an integer number (3705507).

Almost surely, 2^40284558 is an apocalyptic number.

40284558 is an abundant number, since it is smaller than the sum of its proper divisors (48647610).

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

40284558 is a wasteful number, since it uses less digits than its factorization.

40284558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42288 (or 42285 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 40284558 is about 6347.0117378180. The cubic root of 40284558 is about 342.8042527045.

The spelling of 40284558 in words is "forty million, two hundred eighty-four thousand, five hundred fifty-eight".