40645258 has 8 divisors (see below), whose sum is σ = 61237152. Its totient is φ = 20232876.

The previous prime is 40645229. The next prime is 40645261. The reversal of 40645258 is 85254604.

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, 44310 + ... + 45217.

It is an arithmetic number, because the mean of its divisors is an integer number (7654644).

Almost surely, 2^40645258 is an apocalyptic number.

40645258 is a deficient number, since it is larger than the sum of its proper divisors (20591894).

40645258 is a wasteful number, since it uses less digits than its factorization.

40645258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89756.

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 40645258 is about 6375.3633621936. The cubic root of 40645258 is about 343.8243480837.

The spelling of 40645258 in words is "forty million, six hundred forty-five thousand, two hundred fifty-eight".