90954240 has 160 divisors (see below), whose sum is σ = 313479936. Its totient is φ = 22364160.

The previous prime is 90954239. The next prime is 90954247. The reversal of 90954240 is 4245909.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90954247) 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, 99385 + ... + 100295.

Almost surely, 2^90954240 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 90954240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156739968).

90954240 is an abundant number, since it is smaller than the sum of its proper divisors (222525696).

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

90954240 is a wasteful number, since it uses less digits than its factorization.

90954240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 934 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 90954240 is about 9536.9932368645. The cubic root of 90954240 is about 449.7187378204.

The spelling of 90954240 in words is "ninety million, nine hundred fifty-four thousand, two hundred forty".