7464540 has 48 divisors (see below), whose sum is σ = 21353472. Its totient is φ = 1947456.

The previous prime is 7464533. The next prime is 7464551. The reversal of 7464540 is 454647.

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 = 7464498 and 7464507.

It is a congruent number.

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, 1497 + ... + 4143.

It is an arithmetic number, because the mean of its divisors is an integer number (444864).

Almost surely, 2^7464540 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 7464540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10676736).

7464540 is an abundant number, since it is smaller than the sum of its proper divisors (13888932).

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

7464540 is a wasteful number, since it uses less digits than its factorization.

7464540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706 (or 2704 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 7464540 is about 2732.1310363890. The cubic root of 7464540 is about 195.4344030245.

The spelling of 7464540 in words is "seven million, four hundred sixty-four thousand, five hundred forty".