40045332 has 12 divisors (see below), whose sum is σ = 93439136. Its totient is φ = 13348440.

The previous prime is 40045321. The next prime is 40045381. The reversal of 40045332 is 23354004.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×40045332² = 3207257229980448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40045299 and 40045308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1668544 + ... + 1668567.

Almost surely, 2^40045332 is an apocalyptic number.

It is an amenable number.

40045332 is an abundant number, since it is smaller than the sum of its proper divisors (53393804).

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

40045332 is a wasteful number, since it uses less digits than its factorization.

40045332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3337118 (or 3337116 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 40045332 is about 6328.1381148012. The cubic root of 40045332 is about 342.1243349434.

Adding to 40045332 its reverse (23354004), we get a palindrome (63399336).

The spelling of 40045332 in words is "forty million, forty-five thousand, three hundred thirty-two".