40839898 has 32 divisors (see below), whose sum is σ = 69009408. Its totient is φ = 17967600.

The previous prime is 40839889. The next prime is 40839941. The reversal of 40839898 is 89893804.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131163 + ... + 131473.

It is an arithmetic number, because the mean of its divisors is an integer number (2156544).

Almost surely, 2^40839898 is an apocalyptic number.

40839898 is a deficient number, since it is larger than the sum of its proper divisors (28169510).

40839898 is a wasteful number, since it uses less digits than its factorization.

40839898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498.

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 40839898 is about 6390.6101430145. The cubic root of 40839898 is about 344.3723040117.

It can be divided in two parts, 40 and 839898, that added together give a palindrome (839938).

The spelling of 40839898 in words is "forty million, eight hundred thirty-nine thousand, eight hundred ninety-eight".