4525840 has 80 divisors (see below), whose sum is σ = 11874240. Its totient is φ = 1589760.

The previous prime is 4525837. The next prime is 4525841. The reversal of 4525840 is 485254.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 4525799 and 4525808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4525841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32491 + ... + 32629.

It is an arithmetic number, because the mean of its divisors is an integer number (148428).

Almost surely, 2^4525840 is an apocalyptic number.

4525840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4525840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5937120).

4525840 is an abundant number, since it is smaller than the sum of its proper divisors (7348400).

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

4525840 is a wasteful number, since it uses less digits than its factorization.

4525840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 4525840 is about 2127.4021716638. The cubic root of 4525840 is about 165.4117661739.

The spelling of 4525840 in words is "four million, five hundred twenty-five thousand, eight hundred forty".