40493898 has 32 divisors (see below), whose sum is σ = 95281920. Its totient is φ = 12703680.

The previous prime is 40493861. The next prime is 40493933. The reversal of 40493898 is 89839404.

It is a happy number.

40493898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21138 + ... + 22973.

It is an arithmetic number, because the mean of its divisors is an integer number (2977560).

Almost surely, 2^40493898 is an apocalyptic number.

40493898 is an abundant number, since it is smaller than the sum of its proper divisors (54788022).

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

40493898 is a wasteful number, since it uses less digits than its factorization.

40493898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44139 (or 44133 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 40493898 is about 6363.4815942218. The cubic root of 40493898 is about 343.3970248718.

The spelling of 40493898 in words is "forty million, four hundred ninety-three thousand, eight hundred ninety-eight".