40524320 has 48 divisors (see below), whose sum is σ = 96707520. Its totient is φ = 16045824.

The previous prime is 40524299. The next prime is 40524343. The reversal of 40524320 is 2342504.

It is a super-2 number, since 2×40524320² = 3284441022924800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 40524292 and 40524301.

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, 15251 + ... + 17709.

It is an arithmetic number, because the mean of its divisors is an integer number (2014740).

Almost surely, 2^40524320 is an apocalyptic number.

40524320 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 40524320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48353760).

40524320 is an abundant number, since it is smaller than the sum of its proper divisors (56183200).

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

40524320 is a wasteful number, since it uses less digits than its factorization.

40524320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577 (or 2569 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 40524320 is about 6365.8715035728. The cubic root of 40524320 is about 343.4829983950.

Adding to 40524320 its reverse (2342504), we get a palindrome (42866824).

The spelling of 40524320 in words is "forty million, five hundred twenty-four thousand, three hundred twenty".