90123088 has 40 divisors (see below), whose sum is σ = 192487680. Its totient is φ = 40535040.

The previous prime is 90123073. The next prime is 90123109. The reversal of 90123088 is 88032109.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14433 + ... + 19711.

It is an arithmetic number, because the mean of its divisors is an integer number (4812192).

Almost surely, 2^90123088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90123088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96243840).

90123088 is an abundant number, since it is smaller than the sum of its proper divisors (102364592).

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

90123088 is a wasteful number, since it uses less digits than its factorization.

90123088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5395 (or 5389 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 90123088 is about 9493.3180711488. The cubic root of 90123088 is about 448.3446805338.

It can be divided in two parts, 9012 and 3088, that added together give a square (12100 = 110²).

The spelling of 90123088 in words is "ninety million, one hundred twenty-three thousand, eighty-eight".