5285840 has 40 divisors (see below), whose sum is σ = 14046720. Its totient is φ = 1812096.

The previous prime is 5285807. The next prime is 5285881. The reversal of 5285840 is 485825.

5285840 = T₈₃₂ + T₈₃₃ + ... + T₈₄₆.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5285797 and 5285806.

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, 4160 + ... + 5279.

It is an arithmetic number, because the mean of its divisors is an integer number (351168).

Almost surely, 2^5285840 is an apocalyptic number.

It is an amenable number.

5285840 is an abundant number, since it is smaller than the sum of its proper divisors (8760880).

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

5285840 is a wasteful number, since it uses less digits than its factorization.

5285840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9459 (or 9453 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 5285840 is about 2299.0954743116. The cubic root of 5285840 is about 174.1959302593.

The spelling of 5285840 in words is "five million, two hundred eighty-five thousand, eight hundred forty".