40535478 has 40 divisors (see below), whose sum is σ = 92390760. Its totient is φ = 13279680.

The previous prime is 40535447. The next prime is 40535489. The reversal of 40535478 is 87453504.

40535478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 7438 + ... + 11678.

It is an arithmetic number, because the mean of its divisors is an integer number (2309769).

Almost surely, 2^40535478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40535478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46195380).

40535478 is an abundant number, since it is smaller than the sum of its proper divisors (51855282).

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

40535478 is a wasteful number, since it uses less digits than its factorization.

40535478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314 (or 4305 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 40535478 is about 6366.7478354337. The cubic root of 40535478 is about 343.5145204670.

The spelling of 40535478 in words is "forty million, five hundred thirty-five thousand, four hundred seventy-eight".