40280448 has 64 divisors (see below), whose sum is σ = 115239600. Its totient is φ = 12392448.

The previous prime is 40280419. The next prime is 40280453. The reversal of 40280448 is 84408204.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 958 + ... + 9026.

Almost surely, 2^40280448 is an apocalyptic number.

40280448 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 40280448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57619800).

40280448 is an abundant number, since it is smaller than the sum of its proper divisors (74959152).

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

40280448 is a wasteful number, since it uses less digits than its factorization.

40280448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8099 (or 8087 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 40280448 is about 6346.6879551464. The cubic root of 40280448 is about 342.7925941976.

The spelling of 40280448 in words is "forty million, two hundred eighty thousand, four hundred forty-eight".