32428428 has 24 divisors (see below), whose sum is σ = 77712432. Its totient is φ = 10517184.

The previous prime is 32428427. The next prime is 32428433. The reversal of 32428428 is 82482423.

It is not an unprimeable number, because it can be changed into a prime (32428423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36075 + ... + 36962.

It is an arithmetic number, because the mean of its divisors is an integer number (3238018).

Almost surely, 2^32428428 is an apocalyptic number.

It is an amenable number.

32428428 is an abundant number, since it is smaller than the sum of its proper divisors (45284004).

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

32428428 is a wasteful number, since it uses less digits than its factorization.

32428428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73081 (or 73079 counting only the distinct ones).

The product of its digits is 24576, while the sum is 33.

The square root of 32428428 is about 5694.5963860488. The cubic root of 32428428 is about 318.8907819487.

The spelling of 32428428 in words is "thirty-two million, four hundred twenty-eight thousand, four hundred twenty-eight".