7142432 has 48 divisors (see below), whose sum is σ = 15567552. Its totient is φ = 3198720.

The previous prime is 7142419. The next prime is 7142437. The reversal of 7142432 is 2342417.

It is a junction number, because it is equal to n+sod(n) for n = 7142398 and 7142407.

It is not an unprimeable number, because it can be changed into a prime (7142437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36158 + ... + 36354.

It is an arithmetic number, because the mean of its divisors is an integer number (324324).

Almost surely, 2^7142432 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 7142432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7783776).

7142432 is an abundant number, since it is smaller than the sum of its proper divisors (8425120).

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

7142432 is a wasteful number, since it uses less digits than its factorization.

7142432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 313 counting only the distinct ones).

The product of its digits is 1344, while the sum is 23.

The square root of 7142432 is about 2672.5328809951. The cubic root of 7142432 is about 192.5818575797.

Adding to 7142432 its reverse (2342417), we get a palindrome (9484849).

The spelling of 7142432 in words is "seven million, one hundred forty-two thousand, four hundred thirty-two".