40143024 has 60 divisors (see below), whose sum is σ = 113384856. Its totient is φ = 13257216.

The previous prime is 40143017. The next prime is 40143041. The reversal of 40143024 is 42034104.

It is a super-2 number, since 2×40143024² = 3222924751729152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40142988 and 40143006.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15039 + ... + 17505.

Almost surely, 2^40143024 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 40143024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56692428).

40143024 is an abundant number, since it is smaller than the sum of its proper divisors (73241832).

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

40143024 is a wasteful number, since it uses less digits than its factorization.

40143024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594 (or 2585 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40143024 is about 6335.8522710051. The cubic root of 40143024 is about 342.4023171445.

Adding to 40143024 its reverse (42034104), we get a palindrome (82177128).

The spelling of 40143024 in words is "forty million, one hundred forty-three thousand, twenty-four".