5490240 has 224 divisors, whose sum is σ = 21457920. Its totient is φ = 1161216.

The previous prime is 5490229. The next prime is 5490241. The reversal of 5490240 is 420945.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 5490240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5490241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127659 + ... + 127701.

Almost surely, 2^5490240 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 5490240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10728960).

5490240 is an abundant number, since it is smaller than the sum of its proper divisors (15967680).

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

5490240 is a wasteful number, since it uses less digits than its factorization.

5490240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 5490240 is about 2343.1261169643. The cubic root of 5490240 is about 176.4129422171.

The spelling of 5490240 in words is "five million, four hundred ninety thousand, two hundred forty".