90040433 has 8 divisors (see below), whose sum is σ = 102984000. Its totient is φ = 77117040.

The previous prime is 90040427. The next prime is 90040439. The reversal of 90040433 is 33404009.

It is an interprime number because it is at equal distance from previous prime (90040427) and next prime (90040439).

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

It is not a de Polignac number, because 90040433 - 2⁶ = 90040369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90040399 and 90040408.

It is not an unprimeable number, because it can be changed into a prime (90040439) 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, 6203 + ... + 14783.

It is an arithmetic number, because the mean of its divisors is an integer number (12873000).

Almost surely, 2^90040433 is an apocalyptic number.

It is an amenable number.

90040433 is a deficient number, since it is larger than the sum of its proper divisors (12943567).

90040433 is a wasteful number, since it uses less digits than its factorization.

90040433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10087.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 90040433 is about 9488.9637474279. The cubic root of 90040433 is about 448.2075744744.

The spelling of 90040433 in words is "ninety million, forty thousand, four hundred thirty-three".