90201340 has 12 divisors (see below), whose sum is σ = 189422856. Its totient is φ = 36080528.

The previous prime is 90201313. The next prime is 90201343. The reversal of 90201340 is 4310209.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90201343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2255014 + ... + 2255053.

It is an arithmetic number, because the mean of its divisors is an integer number (15785238).

Almost surely, 2^90201340 is an apocalyptic number.

It is an amenable number.

90201340 is an abundant number, since it is smaller than the sum of its proper divisors (99221516).

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

90201340 is a wasteful number, since it uses less digits than its factorization.

90201340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510076 (or 4510074 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 90201340 is about 9497.4386020653. The cubic root of 90201340 is about 448.4744057774.

Adding to 90201340 its reverse (4310209), we get a palindrome (94511549).

The spelling of 90201340 in words is "ninety million, two hundred one thousand, three hundred forty".