7532420 has 48 divisors (see below), whose sum is σ = 18240768. Its totient is φ = 2559360.

The previous prime is 7532419. The next prime is 7532443. The reversal of 7532420 is 242357.

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, 24065 + ... + 24375.

It is an arithmetic number, because the mean of its divisors is an integer number (380016).

Almost surely, 2^7532420 is an apocalyptic number.

7532420 is a gapful number since it is divisible by the number (70) 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 7532420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9120384).

7532420 is an abundant number, since it is smaller than the sum of its proper divisors (10708348).

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

7532420 is a wasteful number, since it uses less digits than its factorization.

7532420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 7532420 is about 2744.5254598928. The cubic root of 7532420 is about 196.0250211011.

Adding to 7532420 its reverse (242357), we get a palindrome (7774777).

The spelling of 7532420 in words is "seven million, five hundred thirty-two thousand, four hundred twenty".