40530156 has 12 divisors (see below), whose sum is σ = 94570392. Its totient is φ = 13510048.

The previous prime is 40530103. The next prime is 40530157. The reversal of 40530156 is 65103504.

40530156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (40530157) 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 3 ways as a sum of consecutive naturals, for example, 1688745 + ... + 1688768.

It is an arithmetic number, because the mean of its divisors is an integer number (7880866).

Almost surely, 2^40530156 is an apocalyptic number.

It is an amenable number.

40530156 is an abundant number, since it is smaller than the sum of its proper divisors (54040236).

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

40530156 is a wasteful number, since it uses less digits than its factorization.

40530156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377520 (or 3377518 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 40530156 is about 6366.3298689276. The cubic root of 40530156 is about 343.4994861943.

The spelling of 40530156 in words is "forty million, five hundred thirty thousand, one hundred fifty-six".