5490987840 has 896 divisors, whose sum is σ = 22940467200. Its totient is φ = 1224253440.

The previous prime is 5490987833. The next prime is 5490987851. The reversal of 5490987840 is 487890945.

5490987840 is a `hidden beast` number, since 549 + 0 + 98 + 7 + 8 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 66156439 + ... + 66156521.

It is an arithmetic number, because the mean of its divisors is an integer number (25603200).

Almost surely, 2^5490987840 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 5490987840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11470233600).

5490987840 is an abundant number, since it is smaller than the sum of its proper divisors (17449479360).

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

5490987840 is a wasteful number, since it uses less digits than its factorization.

5490987840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 5490987840 is about 74101.1999902836. The cubic root of 5490987840 is about 1764.2095174341.

The spelling of 5490987840 in words is "five billion, four hundred ninety million, nine hundred eighty-seven thousand, eight hundred forty".