90334720 has 120 divisors (see below), whose sum is σ = 251068752. Its totient is φ = 30535680.

The previous prime is 90334711. The next prime is 90334757. The reversal of 90334720 is 2743309.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1272285 + ... + 1272355.

Almost surely, 2^90334720 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 90334720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125534376).

90334720 is an abundant number, since it is smaller than the sum of its proper divisors (160734032).

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

90334720 is an frugal number, since it uses more digits than its factorization.

90334720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 90334720 is about 9504.4579014271. The cubic root of 90334720 is about 448.6953487499.

The spelling of 90334720 in words is "ninety million, three hundred thirty-four thousand, seven hundred twenty".