40354338 has 16 divisors (see below), whose sum is σ = 81224640. Its totient is φ = 13365456.

The previous prime is 40354337. The next prime is 40354357. The reversal of 40354338 is 83345304.

It is not an unprimeable number, because it can be changed into a prime (40354331) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20478 + ... + 22361.

It is an arithmetic number, because the mean of its divisors is an integer number (5076540).

Almost surely, 2^40354338 is an apocalyptic number.

40354338 is an abundant number, since it is smaller than the sum of its proper divisors (40870302).

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

40354338 is a wasteful number, since it uses less digits than its factorization.

40354338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43001.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 40354338 is about 6352.5064344714. The cubic root of 40354338 is about 343.0020711200.

The spelling of 40354338 in words is "forty million, three hundred fifty-four thousand, three hundred thirty-eight".