90369445 has 8 divisors (see below), whose sum is σ = 110965536. Its totient is φ = 70614096.

The previous prime is 90369431. The next prime is 90369449. The reversal of 90369445 is 54496309.

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 90369445 - 2⁵ = 90369413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90369398 and 90369407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90369449) 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, 209947 + ... + 210376.

It is an arithmetic number, because the mean of its divisors is an integer number (13870692).

Almost surely, 2^90369445 is an apocalyptic number.

It is an amenable number.

90369445 is a deficient number, since it is larger than the sum of its proper divisors (20596091).

90369445 is a wasteful number, since it uses less digits than its factorization.

90369445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420371.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 90369445 is about 9506.2845002661. The cubic root of 90369445 is about 448.7528347677.

It can be divided in two parts, 9036 and 9445, that added together give a palindrome (18481).

The spelling of 90369445 in words is "ninety million, three hundred sixty-nine thousand, four hundred forty-five".