40000898 has 16 divisors (see below), whose sum is σ = 72607104. Its totient is φ = 16134720.

The previous prime is 40000897. The next prime is 40000921. The reversal of 40000898 is 89800004.

It is a self number, because there is not a number n which added to its sum of digits gives 40000898.

It is not an unprimeable number, because it can be changed into a prime (40000897) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 83798 + ... + 84273.

It is an arithmetic number, because the mean of its divisors is an integer number (4537944).

Almost surely, 2^40000898 is an apocalyptic number.

40000898 is a deficient number, since it is larger than the sum of its proper divisors (32606206).

40000898 is a wasteful number, since it uses less digits than its factorization.

40000898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168097.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 40000898 is about 6324.6263130718. The cubic root of 40000898 is about 341.9977485802.

The spelling of 40000898 in words is "forty million, eight hundred ninety-eight", and thus it is an aban number.