90511460 has 48 divisors (see below), whose sum is σ = 205501296. Its totient is φ = 33288192.

The previous prime is 90511457. The next prime is 90511469. The reversal of 90511460 is 6411509.

It can be written as a sum of positive squares in 8 ways, for example, as 678976 + 89832484 = 824^2 + 9478^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (90511469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87104 + ... + 88136.

It is an arithmetic number, because the mean of its divisors is an integer number (4281277).

Almost surely, 2^90511460 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 90511460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102750648).

90511460 is an abundant number, since it is smaller than the sum of its proper divisors (114989836).

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

90511460 is a wasteful number, since it uses less digits than its factorization.

90511460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392 (or 1390 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 90511460 is about 9513.7511003810. The cubic root of 90511460 is about 448.9877824663.

Adding to 90511460 its reverse (6411509), we get a palindrome (96922969).

The spelling of 90511460 in words is "ninety million, five hundred eleven thousand, four hundred sixty".