40133144 has 8 divisors (see below), whose sum is σ = 75249660. Its totient is φ = 20066568.

The previous prime is 40133131. The next prime is 40133153. The reversal of 40133144 is 44133104.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×40133144² = 3221338494649472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2508314 + ... + 2508329.

Almost surely, 2^40133144 is an apocalyptic number.

It is an amenable number.

40133144 is a deficient number, since it is larger than the sum of its proper divisors (35116516).

40133144 is a wasteful number, since it uses less digits than its factorization.

40133144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5016649 (or 5016645 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 40133144 is about 6335.0725331286. The cubic root of 40133144 is about 342.3742241565.

Adding to 40133144 its reverse (44133104), we get a palindrome (84266248).

The spelling of 40133144 in words is "forty million, one hundred thirty-three thousand, one hundred forty-four".