40431024 has 30 divisors (see below), whose sum is σ = 113151116. Its totient is φ = 13476960.

The previous prime is 40431023. The next prime is 40431059. The reversal of 40431024 is 42013404.

40431024 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 40430988 and 40431006.

It is not an unprimeable number, because it can be changed into a prime (40431023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140242 + ... + 140529.

Almost surely, 2^40431024 is an apocalyptic number.

It is an amenable number.

40431024 is an abundant number, since it is smaller than the sum of its proper divisors (72720092).

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

40431024 is a wasteful number, since it uses less digits than its factorization.

40431024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280785 (or 280776 counting only the distinct ones).

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

The square root of 40431024 is about 6358.5394549377. The cubic root of 40431024 is about 343.2192044285.

Adding to 40431024 its reverse (42013404), we get a palindrome (82444428).

The spelling of 40431024 in words is "forty million, four hundred thirty-one thousand, twenty-four".