40356128 has 18 divisors (see below), whose sum is σ = 79521939. Its totient is φ = 20160096.

The previous prime is 40356103. The next prime is 40356131. The reversal of 40356128 is 82165304.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 20178064 + 20178064 = 4492^2 + 4492^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=4492.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40356128.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 35375 + ... + 36497.

Almost surely, 2^40356128 is an apocalyptic number.

It is an amenable number.

40356128 is a deficient number, since it is larger than the sum of its proper divisors (39165811).

40356128 is an frugal number, since it uses more digits than its factorization.

40356128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256 (or 1125 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 40356128 is about 6352.6473221799. The cubic root of 40356128 is about 343.0071425667.

The spelling of 40356128 in words is "forty million, three hundred fifty-six thousand, one hundred twenty-eight".