40448160 has 120 divisors (see below), whose sum is σ = 142794036. Its totient is φ = 10782720.

The previous prime is 40448137. The next prime is 40448173. The reversal of 40448160 is 6184404.

It can be written as a sum of positive squares in 2 ways, for example, as 32764176 + 7683984 = 5724^2 + 2772^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11400 + ... + 14520.

Almost surely, 2^40448160 is an apocalyptic number.

40448160 is a gapful number since it is divisible by the number (40) 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 40448160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71397018).

40448160 is an abundant number, since it is smaller than the sum of its proper divisors (102345876).

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

40448160 is a wasteful number, since it uses less digits than its factorization.

40448160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3148 (or 3131 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 40448160 is about 6359.8867914453. The cubic root of 40448160 is about 343.2676867818.

The spelling of 40448160 in words is "forty million, four hundred forty-eight thousand, one hundred sixty".