40338258 has 16 divisors (see below), whose sum is σ = 80763456. Its totient is φ = 13431600.

The previous prime is 40338239. The next prime is 40338293. The reversal of 40338258 is 85283304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3483 + ... + 9633.

It is an arithmetic number, because the mean of its divisors is an integer number (5047716).

Almost surely, 2^40338258 is an apocalyptic number.

40338258 is an abundant number, since it is smaller than the sum of its proper divisors (40425198).

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

40338258 is a wasteful number, since it uses less digits than its factorization.

40338258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7249.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 40338258 is about 6351.2406662006. The cubic root of 40338258 is about 342.9565063693.

The spelling of 40338258 in words is "forty million, three hundred thirty-eight thousand, two hundred fifty-eight".