5457680 has 40 divisors (see below), whose sum is σ = 13438872. Its totient is φ = 2054144.

The previous prime is 5457679. The next prime is 5457691. The reversal of 5457680 is 867545.

Added to its reverse (867545) it gives a square (6325225 = 2515²).

It can be written as a sum of positive squares in 4 ways, for example, as 2027776 + 3429904 = 1424^2 + 1852^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 5457680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647 + ... + 3366.

Almost surely, 2^5457680 is an apocalyptic number.

It is an amenable number.

5457680 is an abundant number, since it is smaller than the sum of its proper divisors (7981192).

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

5457680 is a wasteful number, since it uses less digits than its factorization.

5457680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4043 (or 4037 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 5457680 is about 2336.1678021923. The cubic root of 5457680 is about 176.0635101373.

Adding to 5457680 its reverse (867545), we get a square (6325225 = 2515²).

The spelling of 5457680 in words is "five million, four hundred fifty-seven thousand, six hundred eighty".