40136832 has 48 divisors (see below), whose sum is σ = 115501230. Its totient is φ = 13378560.

The previous prime is 40136821. The next prime is 40136839. The reversal of 40136832 is 23863104.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 38638656 + 1498176 = 6216^2 + 1224^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×40136832² = 3221930565992448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40136796 and 40136805.

It is not an unprimeable number, because it can be changed into a prime (40136839) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16269 + ... + 18572.

Almost surely, 2^40136832 is an apocalyptic number.

It is an amenable number.

40136832 is an abundant number, since it is smaller than the sum of its proper divisors (75364398).

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

40136832 is a wasteful number, since it uses less digits than its factorization.

40136832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34861 (or 34846 counting only the distinct ones).

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

The square root of 40136832 is about 6335.3636044035. The cubic root of 40136832 is about 342.3847112281.

Adding to 40136832 its reverse (23863104), we get a palindrome (63999936).

The spelling of 40136832 in words is "forty million, one hundred thirty-six thousand, eight hundred thirty-two".