90370560 has 240 divisors, whose sum is σ = 338424768. Its totient is φ = 20152320.

The previous prime is 90370559. The next prime is 90370561. The reversal of 90370560 is 6507309.

It is an interprime number because it is at equal distance from previous prime (90370559) and next prime (90370561).

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×90370560² = 16333676229427200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90370561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2204140 + ... + 2204180.

Almost surely, 2^90370560 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 90370560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169212384).

90370560 is an abundant number, since it is smaller than the sum of its proper divisors (248054208).

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

90370560 is an equidigital number, since it uses as much as digits as its factorization.

90370560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 90370560 is about 9506.3431455003. The cubic root of 90370560 is about 448.7546803670.

Adding to 90370560 its reverse (6507309), we get a palindrome (96877869).

The spelling of 90370560 in words is "ninety million, three hundred seventy thousand, five hundred sixty".