40204533 has 8 divisors (see below), whose sum is σ = 55055008. Its totient is φ = 26078544.

The previous prime is 40204511. The next prime is 40204543. The reversal of 40204533 is 33540204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40204533 - 2¹² = 40200437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40204543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180991 + ... + 181212.

It is an arithmetic number, because the mean of its divisors is an integer number (6881876).

Almost surely, 2^40204533 is an apocalyptic number.

It is an amenable number.

40204533 is a deficient number, since it is larger than the sum of its proper divisors (14850475).

40204533 is a wasteful number, since it uses less digits than its factorization.

40204533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362243.

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

The square root of 40204533 is about 6340.7044561310. The cubic root of 40204533 is about 342.5771094611.

Adding to 40204533 its reverse (33540204), we get a palindrome (73744737).

The spelling of 40204533 in words is "forty million, two hundred four thousand, five hundred thirty-three".