40198648 has 32 divisors (see below), whose sum is σ = 86348160. Its totient is φ = 17186400.

The previous prime is 40198637. The next prime is 40198651. The reversal of 40198648 is 84689104.

40198648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40198648.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 37723 + ... + 38773.

It is an arithmetic number, because the mean of its divisors is an integer number (2698380).

Almost surely, 2^40198648 is an apocalyptic number.

It is an amenable number.

40198648 is an abundant number, since it is smaller than the sum of its proper divisors (46149512).

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

40198648 is a wasteful number, since it uses less digits than its factorization.

40198648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747 (or 1743 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 40198648 is about 6340.2403739921. The cubic root of 40198648 is about 342.5603935627.

The spelling of 40198648 in words is "forty million, one hundred ninety-eight thousand, six hundred forty-eight".