5287440 has 40 divisors (see below), whose sum is σ = 16391808. Its totient is φ = 1409920.

The previous prime is 5287427. The next prime is 5287489. The reversal of 5287440 is 447825.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 5287398 and 5287407.

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, 10776 + ... + 11255.

Almost surely, 2^5287440 is an apocalyptic number.

It is an amenable number.

5287440 is an abundant number, since it is smaller than the sum of its proper divisors (11104368).

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

5287440 is a wasteful number, since it uses less digits than its factorization.

5287440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22047 (or 22041 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 5287440 is about 2299.4434109149. The cubic root of 5287440 is about 174.2135045945.

The spelling of 5287440 in words is "five million, two hundred eighty-seven thousand, four hundred forty".