40017948 has 12 divisors (see below), whose sum is σ = 93375240. Its totient is φ = 13339312.

The previous prime is 40017947. The next prime is 40017959. The reversal of 40017948 is 84971004.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40017947) 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, 1667403 + ... + 1667426.

It is an arithmetic number, because the mean of its divisors is an integer number (7781270).

Almost surely, 2^40017948 is an apocalyptic number.

It is an amenable number.

40017948 is an abundant number, since it is smaller than the sum of its proper divisors (53357292).

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

40017948 is a wasteful number, since it uses less digits than its factorization.

40017948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334836 (or 3334834 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 40017948 is about 6325.9740751919. The cubic root of 40017948 is about 342.0463327672.

The spelling of 40017948 in words is "forty million, seventeen thousand, nine hundred forty-eight".