32420455 has 16 divisors (see below), whose sum is σ = 40886784. Its totient is φ = 24631200.

The previous prime is 32420447. The next prime is 32420461. The reversal of 32420455 is 55402423.

It is not a de Polignac number, because 32420455 - 2³ = 32420447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16432 + ... + 18298.

It is an arithmetic number, because the mean of its divisors is an integer number (2555424).

Almost surely, 2^32420455 is an apocalyptic number.

32420455 is a deficient number, since it is larger than the sum of its proper divisors (8466329).

32420455 is a wasteful number, since it uses less digits than its factorization.

32420455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046.

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

The square root of 32420455 is about 5693.8962934005. The cubic root of 32420455 is about 318.8646451632.

Adding to 32420455 its reverse (55402423), we get a palindrome (87822878).

The spelling of 32420455 in words is "thirty-two million, four hundred twenty thousand, four hundred fifty-five".