40509088 has 12 divisors (see below), whose sum is σ = 79752330. Its totient is φ = 20254528.

The previous prime is 40509061. The next prime is 40509089. The reversal of 40509088 is 88090504.

It can be written as a sum of positive squares in only one way, i.e., 29030544 + 11478544 = 5388^2 + 3388^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40509089) by changing a digit.

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 as a sum of consecutive naturals, namely, 632923 + ... + 632986.

Almost surely, 2^40509088 is an apocalyptic number.

It is an amenable number.

40509088 is a deficient number, since it is larger than the sum of its proper divisors (39243242).

40509088 is a wasteful number, since it uses less digits than its factorization.

40509088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265919 (or 1265911 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 40509088 is about 6364.6750113419. The cubic root of 40509088 is about 343.4399576672.

The spelling of 40509088 in words is "forty million, five hundred nine thousand, eighty-eight".