40136330 has 32 divisors (see below), whose sum is σ = 78699600. Its totient is φ = 14648832.

The previous prime is 40136297. The next prime is 40136333. The reversal of 40136330 is 3363104.

It can be written as a sum of positive squares in 8 ways, for example, as 80089 + 40056241 = 283^2 + 6329^2 .

It is a super-2 number, since 2×40136330² = 3221849971737800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40136333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9836 + ... + 13304.

Almost surely, 2^40136330 is an apocalyptic number.

40136330 is a deficient number, since it is larger than the sum of its proper divisors (38563270).

40136330 is a wasteful number, since it uses less digits than its factorization.

40136330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3578.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 40136330 is about 6335.3239854012. The cubic root of 40136330 is about 342.3832837957.

Adding to 40136330 its reverse (3363104), we get a palindrome (43499434).

The spelling of 40136330 in words is "forty million, one hundred thirty-six thousand, three hundred thirty".