32306428 has 24 divisors (see below), whose sum is σ = 70487424. Its totient is φ = 12586800.

The previous prime is 32306423. The next prime is 32306471. The reversal of 32306428 is 82460323.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 32306396 and 32306405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32306423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52138 + ... + 52753.

It is an arithmetic number, because the mean of its divisors is an integer number (2936976).

Almost surely, 2^32306428 is an apocalyptic number.

It is an amenable number.

32306428 is an abundant number, since it is smaller than the sum of its proper divisors (38180996).

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

32306428 is a wasteful number, since it uses less digits than its factorization.

32306428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104913 (or 104911 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 32306428 is about 5683.8743828484. The cubic root of 32306428 is about 318.4903764178.

The spelling of 32306428 in words is "thirty-two million, three hundred six thousand, four hundred twenty-eight".