32455420 has 48 divisors (see below), whose sum is σ = 72253440. Its totient is φ = 12211776.

The previous prime is 32455417. The next prime is 32455429. The reversal of 32455420 is 2455423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32455429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84549 + ... + 84931.

It is an arithmetic number, because the mean of its divisors is an integer number (1505280).

Almost surely, 2^32455420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32455420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36126720).

32455420 is an abundant number, since it is smaller than the sum of its proper divisors (39798020).

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

32455420 is a wasteful number, since it uses less digits than its factorization.

32455420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 32455420 is about 5696.9658591219. The cubic root of 32455420 is about 318.9792343083.

The spelling of 32455420 in words is "thirty-two million, four hundred fifty-five thousand, four hundred twenty".