90279456 has 48 divisors (see below), whose sum is σ = 239355648. Its totient is φ = 29792000.

The previous prime is 90279419. The next prime is 90279457. The reversal of 90279456 is 65497209.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90279457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5041 + ... + 14351.

It is an arithmetic number, because the mean of its divisors is an integer number (4986576).

Almost surely, 2^90279456 is an apocalyptic number.

90279456 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90279456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119677824).

90279456 is an abundant number, since it is smaller than the sum of its proper divisors (149076192).

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

90279456 is a wasteful number, since it uses less digits than its factorization.

90279456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9425 (or 9417 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 90279456 is about 9501.5501893112. The cubic root of 90279456 is about 448.6038307522.

The spelling of 90279456 in words is "ninety million, two hundred seventy-nine thousand, four hundred fifty-six".