90261408 has 24 divisors (see below), whose sum is σ = 236936448. Its totient is φ = 30087104.

The previous prime is 90261403. The next prime is 90261433. The reversal of 90261408 is 80416209.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (90261403) 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 3 ways as a sum of consecutive naturals, for example, 470016 + ... + 470207.

It is an arithmetic number, because the mean of its divisors is an integer number (9872352).

Almost surely, 2^90261408 is an apocalyptic number.

It is an amenable number.

90261408 is an abundant number, since it is smaller than the sum of its proper divisors (146675040).

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

90261408 is a wasteful number, since it uses less digits than its factorization.

90261408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940236 (or 940228 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 90261408 is about 9500.6004020799. The cubic root of 90261408 is about 448.5739349085.

The spelling of 90261408 in words is "ninety million, two hundred sixty-one thousand, four hundred eight".