90020094 has 32 divisors (see below), whose sum is σ = 187536384. Its totient is φ = 28775040.

The previous prime is 90020071. The next prime is 90020101. The reversal of 90020094 is 49002009.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18877 + ... + 23159.

It is an arithmetic number, because the mean of its divisors is an integer number (5860512).

Almost surely, 2^90020094 is an apocalyptic number.

90020094 is an abundant number, since it is smaller than the sum of its proper divisors (97516290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90020094 is a wasteful number, since it uses less digits than its factorization.

90020094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4432.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 90020094 is about 9487.8919681877. The cubic root of 90020094 is about 448.1738237839.

The spelling of 90020094 in words is "ninety million, twenty thousand, ninety-four".