90040933 has 8 divisors (see below), whose sum is σ = 90944000. Its totient is φ = 89142768.

The previous prime is 90040927. The next prime is 90040939. The reversal of 90040933 is 33904009.

It is an interprime number because it is at equal distance from previous prime (90040927) and next prime (90040939).

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

It is a cyclic number.

It is not a de Polignac number, because 90040933 - 2⁹ = 90040421 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 (90040939) 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, 43363 + ... + 45391.

It is an arithmetic number, because the mean of its divisors is an integer number (11368000).

Almost surely, 2^90040933 is an apocalyptic number.

It is an amenable number.

90040933 is a deficient number, since it is larger than the sum of its proper divisors (903067).

90040933 is a wasteful number, since it uses less digits than its factorization.

90040933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 90040933 is about 9488.9900937876. The cubic root of 90040933 is about 448.2084041141.

The spelling of 90040933 in words is "ninety million, forty thousand, nine hundred thirty-three".