90745088 has 72 divisors (see below), whose sum is σ = 209959680. Its totient is φ = 38338560.

The previous prime is 90745087. The next prime is 90745103. The reversal of 90745088 is 88054709.

It is a super-2 number, since 2×90745088² = 16469341992255488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90745087) 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, 141248 + ... + 141888.

Almost surely, 2^90745088 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 90745088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104979840).

90745088 is an abundant number, since it is smaller than the sum of its proper divisors (119214592).

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

90745088 is an equidigital number, since it uses as much as digits as its factorization.

90745088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 90745088 is about 9526.0216250017. The cubic root of 90745088 is about 449.3737593517.

The spelling of 90745088 in words is "ninety million, seven hundred forty-five thousand, eighty-eight".