7132428 has 24 divisors (see below), whose sum is σ = 18491760. Its totient is φ = 2377440.

The previous prime is 7132427. The next prime is 7132459. The reversal of 7132428 is 8242317.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (7132421) 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, 32913 + ... + 33128.

It is an arithmetic number, because the mean of its divisors is an integer number (770490).

Almost surely, 2^7132428 is an apocalyptic number.

It is an amenable number.

7132428 is an abundant number, since it is smaller than the sum of its proper divisors (11359332).

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

7132428 is a wasteful number, since it uses less digits than its factorization.

7132428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66054 (or 66046 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 7132428 is about 2670.6605924378. The cubic root of 7132428 is about 192.4919027347.

The spelling of 7132428 in words is "seven million, one hundred thirty-two thousand, four hundred twenty-eight".