5257940 has 12 divisors (see below), whose sum is σ = 11041716. Its totient is φ = 2103168.

The previous prime is 5257933. The next prime is 5257943. The reversal of 5257940 is 497525.

It can be written as a sum of positive squares in 2 ways, for example, as 583696 + 4674244 = 764^2 + 2162^2 .

It is a d-powerful number, because it can be written as 5² + 2¹⁶ + 5⁸ + 7⁴ + 9⁷ + 4⁷ + 0 .

It is a junction number, because it is equal to n+sod(n) for n = 5257897 and 5257906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5257943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131429 + ... + 131468.

It is an arithmetic number, because the mean of its divisors is an integer number (920143).

Almost surely, 2^5257940 is an apocalyptic number.

It is an amenable number.

5257940 is an abundant number, since it is smaller than the sum of its proper divisors (5783776).

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

5257940 is a wasteful number, since it uses less digits than its factorization.

5257940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262906 (or 262904 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 5257940 is about 2293.0198429146. The cubic root of 5257940 is about 173.8889060523. Note that the first 3 decimals are identical.

The spelling of 5257940 in words is "five million, two hundred fifty-seven thousand, nine hundred forty".