40535424 has 128 divisors (see below), whose sum is σ = 123256800. Its totient is φ = 13105152.

The previous prime is 40535399. The next prime is 40535431. The reversal of 40535424 is 42453504.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127714 + ... + 128030.

Almost surely, 2^40535424 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 40535424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61628400).

40535424 is an abundant number, since it is smaller than the sum of its proper divisors (82721376).

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

40535424 is a wasteful number, since it uses less digits than its factorization.

40535424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 40535424 is about 6366.7435946487. The cubic root of 40535424 is about 343.5143679275.

Adding to 40535424 its reverse (42453504), we get a palindrome (82988928).

The spelling of 40535424 in words is "forty million, five hundred thirty-five thousand, four hundred twenty-four".