90340470 has 48 divisors (see below), whose sum is σ = 256241232. Its totient is φ = 21900480.

The previous prime is 90340447. The next prime is 90340477. The reversal of 90340470 is 7404309.

It is a super-2 number, since 2×90340470² = 16322801039641800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90340477) 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, 44637 + ... + 46616.

It is an arithmetic number, because the mean of its divisors is an integer number (5338359).

Almost surely, 2^90340470 is an apocalyptic number.

90340470 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

90340470 is an abundant number, since it is smaller than the sum of its proper divisors (165900762).

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

90340470 is a wasteful number, since it uses less digits than its factorization.

90340470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91277 (or 91274 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 90340470 is about 9504.7603862486. The cubic root of 90340470 is about 448.7048686906.

Adding to 90340470 its reverse (7404309), we get a palindrome (97744779).

The spelling of 90340470 in words is "ninety million, three hundred forty thousand, four hundred seventy".