40545136 has 40 divisors (see below), whose sum is σ = 86806944. Its totient is φ = 18247680.

The previous prime is 40545121. The next prime is 40545143. The reversal of 40545136 is 63154504.

40545136 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 7 ways as a sum of consecutive naturals, for example, 3016 + ... + 9496.

Almost surely, 2^40545136 is an apocalyptic number.

40545136 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40545136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43403472).

40545136 is an abundant number, since it is smaller than the sum of its proper divisors (46261808).

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

40545136 is a wasteful number, since it uses less digits than its factorization.

40545136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6529 (or 6523 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 40545136 is about 6367.5062622663. The cubic root of 40545136 is about 343.5418002718.

The spelling of 40545136 in words is "forty million, five hundred forty-five thousand, one hundred thirty-six".