40668048 has 80 divisors (see below), whose sum is σ = 121837440. Its totient is φ = 12963456.

The previous prime is 40667993. The next prime is 40668059. The reversal of 40668048 is 84086604.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7890 + ... + 11982.

It is an arithmetic number, because the mean of its divisors is an integer number (1522968).

Almost surely, 2^40668048 is an apocalyptic number.

40668048 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40668048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60918720).

40668048 is an abundant number, since it is smaller than the sum of its proper divisors (81169392).

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

40668048 is a wasteful number, since it uses less digits than its factorization.

40668048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4133 (or 4121 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 40668048 is about 6377.1504608250. The cubic root of 40668048 is about 343.8885974223. Note that the first 3 decimals are identical.

The spelling of 40668048 in words is "forty million, six hundred sixty-eight thousand, forty-eight".