40133441 has 4 divisors (see below), whose sum is σ = 40987392. Its totient is φ = 39279492.

The previous prime is 40133417. The next prime is 40133449. The reversal of 40133441 is 14433104.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40133441 - 2¹⁴ = 40117057 is a prime.

It is a super-2 number, since 2×40133441² = 3221386173000962, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40133449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426905 + ... + 426998.

It is an arithmetic number, because the mean of its divisors is an integer number (10246848).

Almost surely, 2^40133441 is an apocalyptic number.

It is an amenable number.

40133441 is a deficient number, since it is larger than the sum of its proper divisors (853951).

40133441 is an equidigital number, since it uses as much as digits as its factorization.

40133441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853950.

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

The square root of 40133441 is about 6335.0959740165. The cubic root of 40133441 is about 342.3750687194.

Adding to 40133441 its reverse (14433104), we get a palindrome (54566545).

The spelling of 40133441 in words is "forty million, one hundred thirty-three thousand, four hundred forty-one".