40328136 has 24 divisors (see below), whose sum is σ = 109222230. Its totient is φ = 13442688.

The previous prime is 40328111. The next prime is 40328161. The reversal of 40328136 is 63182304.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40328111) and next prime (40328161).

It can be written as a sum of positive squares in only one way, i.e., 39765636 + 562500 = 6306^2 + 750^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 279985 + ... + 280128.

Almost surely, 2^40328136 is an apocalyptic number.

It is an amenable number.

40328136 is an abundant number, since it is smaller than the sum of its proper divisors (68894094).

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

40328136 is a wasteful number, since it uses less digits than its factorization.

40328136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560125 (or 560118 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 40328136 is about 6350.4437640215. The cubic root of 40328136 is about 342.9278181683.

The spelling of 40328136 in words is "forty million, three hundred twenty-eight thousand, one hundred thirty-six".