90340530 has 32 divisors (see below), whose sum is σ = 247791744. Its totient is φ = 20649216.

The previous prime is 90340519. The next prime is 90340531. The reversal of 90340530 is 3504309.

It is a super-2 number, since 2×90340530² = 16322822721361800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90340530.

It is not an unprimeable number, because it can be changed into a prime (90340531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214887 + ... + 215306.

It is an arithmetic number, because the mean of its divisors is an integer number (7743492).

Almost surely, 2^90340530 is an apocalyptic number.

90340530 is an abundant number, since it is smaller than the sum of its proper divisors (157451214).

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

90340530 is a wasteful number, since it uses less digits than its factorization.

90340530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430210.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 90340530 is about 9504.7635425612. The cubic root of 90340530 is about 448.7049680269.

Adding to 90340530 its reverse (3504309), we get a palindrome (93844839).

The spelling of 90340530 in words is "ninety million, three hundred forty thousand, five hundred thirty".