40499418 has 8 divisors (see below), whose sum is σ = 80998848. Its totient is φ = 13499804.

The previous prime is 40499413. The next prime is 40499419. The reversal of 40499418 is 81499404.

It is a sphenic number, since it is the product of 3 distinct primes.

40499418 is an admirable number.

It is a super-4 number, since 4×40499418⁴ (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (40499413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3374946 + ... + 3374957.

It is an arithmetic number, because the mean of its divisors is an integer number (10124856).

Almost surely, 2^40499418 is an apocalyptic number.

40499418 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40499418 is a wasteful number, since it uses less digits than its factorization.

40499418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6749908.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 40499418 is about 6363.9153042761. The cubic root of 40499418 is about 343.4126277614.

The spelling of 40499418 in words is "forty million, four hundred ninety-nine thousand, four hundred eighteen".