5391540 has 144 divisors (see below), whose sum is σ = 20442240. Its totient is φ = 1117440.

The previous prime is 5391539. The next prime is 5391553. The reversal of 5391540 is 451935.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13666 + ... + 14054.

It is an arithmetic number, because the mean of its divisors is an integer number (141960).

Almost surely, 2^5391540 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 5391540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10221120).

5391540 is an abundant number, since it is smaller than the sum of its proper divisors (15050700).

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

5391540 is a wasteful number, since it uses less digits than its factorization.

5391540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 5391540 is about 2321.9689920410. The cubic root of 5391540 is about 175.3493971830.

The spelling of 5391540 in words is "five million, three hundred ninety-one thousand, five hundred forty".