7261540 has 48 divisors (see below), whose sum is σ = 17922240. Its totient is φ = 2436480.

The previous prime is 7261531. The next prime is 7261561. The reversal of 7261540 is 451627.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1591 + ... + 4129.

It is an arithmetic number, because the mean of its divisors is an integer number (373380).

Almost surely, 2^7261540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7261540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8961120).

7261540 is an abundant number, since it is smaller than the sum of its proper divisors (10660700).

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

7261540 is a wasteful number, since it uses less digits than its factorization.

7261540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572 (or 2570 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 7261540 is about 2694.7244757118. The cubic root of 7261540 is about 193.6464670582.

The spelling of 7261540 in words is "seven million, two hundred sixty-one thousand, five hundred forty".