32002428 has 24 divisors (see below), whose sum is σ = 77248080. Its totient is φ = 10299520.

The previous prime is 32002423. The next prime is 32002433. The reversal of 32002428 is 82420023.

It is an interprime number because it is at equal distance from previous prime (32002423) and next prime (32002433).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32002423) 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, 45633 + ... + 46328.

It is an arithmetic number, because the mean of its divisors is an integer number (3218670).

Almost surely, 2^32002428 is an apocalyptic number.

It is an amenable number.

32002428 is an abundant number, since it is smaller than the sum of its proper divisors (45245652).

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

32002428 is a wasteful number, since it uses less digits than its factorization.

32002428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91997 (or 91995 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 32002428 is about 5657.0688523298. The cubic root of 32002428 is about 317.4882397942.

The spelling of 32002428 in words is "thirty-two million, two thousand, four hundred twenty-eight".