32420320 has 24 divisors (see below), whose sum is σ = 76593384. Its totient is φ = 12968064.

The previous prime is 32420291. The next prime is 32420329. The reversal of 32420320 is 2302423.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 32420294 and 32420303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32420329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101154 + ... + 101473.

It is an arithmetic number, because the mean of its divisors is an integer number (3191391).

Almost surely, 2^32420320 is an apocalyptic number.

It is an amenable number.

32420320 is an abundant number, since it is smaller than the sum of its proper divisors (44173064).

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

32420320 is a wasteful number, since it uses less digits than its factorization.

32420320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202642 (or 202634 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 32420320 is about 5693.8844385885. The cubic root of 32420320 is about 318.8642025744.

Adding to 32420320 its reverse (2302423), we get a palindrome (34722743).

The spelling of 32420320 in words is "thirty-two million, four hundred twenty thousand, three hundred twenty".