40535404 has 48 divisors (see below), whose sum is σ = 87911488. Its totient is φ = 15925248.

The previous prime is 40535399. The next prime is 40535431. The reversal of 40535404 is 40453504.

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, 69964 + ... + 70540.

Almost surely, 2^40535404 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 40535404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43955744).

40535404 is an abundant number, since it is smaller than the sum of its proper divisors (47376084).

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

40535404 is a wasteful number, since it uses less digits than its factorization.

40535404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 40535404 is about 6366.7420239868. The cubic root of 40535404 is about 343.5143114313.

Adding to 40535404 its reverse (40453504), we get a palindrome (80988908).

The spelling of 40535404 in words is "forty million, five hundred thirty-five thousand, four hundred four".