7421532 has 24 divisors (see below), whose sum is σ = 17514000. Its totient is φ = 2445696.

The previous prime is 7421509. The next prime is 7421539. The reversal of 7421532 is 2351247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7421539) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2407 + ... + 4542.

It is an arithmetic number, because the mean of its divisors is an integer number (729750).

Almost surely, 2^7421532 is an apocalyptic number.

It is an amenable number.

7421532 is an abundant number, since it is smaller than the sum of its proper divisors (10092468).

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

7421532 is a wasteful number, since it uses less digits than its factorization.

7421532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7045 (or 7043 counting only the distinct ones).

The product of its digits is 1680, while the sum is 24.

The square root of 7421532 is about 2724.2488873082. The cubic root of 7421532 is about 195.0583388893.

Adding to 7421532 its reverse (2351247), we get a palindrome (9772779).

It can be divided in two parts, 74215 and 32, that added together give a palindrome (74247).

The spelling of 7421532 in words is "seven million, four hundred twenty-one thousand, five hundred thirty-two".