40530448 has 60 divisors (see below), whose sum is σ = 96753852. Its totient is φ = 16343040.

The previous prime is 40530437. The next prime is 40530449. The reversal of 40530448 is 84403504.

It can be written as a sum of positive squares in 2 ways, for example, as 36578304 + 3952144 = 6048^2 + 1988^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (40530449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11808 + ... + 14848.

Almost surely, 2^40530448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40530448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48376926).

40530448 is an abundant number, since it is smaller than the sum of its proper divisors (56223404).

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

40530448 is a wasteful number, since it uses less digits than its factorization.

40530448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080 (or 3067 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 40530448 is about 6366.3528020367. The cubic root of 40530448 is about 343.5003111077.

The spelling of 40530448 in words is "forty million, five hundred thirty thousand, four hundred forty-eight".