40065024 has 48 divisors (see below), whose sum is σ = 106830360. Its totient is φ = 13352960.

The previous prime is 40065017. The next prime is 40065029. The reversal of 40065024 is 42056004.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×40065024² = 3210412296241152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40065029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2884 + ... + 9404.

Almost surely, 2^40065024 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 40065024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53415180).

40065024 is an abundant number, since it is smaller than the sum of its proper divisors (66765336).

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

40065024 is an equidigital number, since it uses as much as digits as its factorization.

40065024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6546 (or 6526 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40065024 is about 6329.6938314582. The cubic root of 40065024 is about 342.1804048027.

The spelling of 40065024 in words is "forty million, sixty-five thousand, twenty-four".