420402352 has 20 divisors (see below), whose sum is σ = 814847400. Its totient is φ = 210119168.

The previous prime is 420402347. The next prime is 420402361. The reversal of 420402352 is 253204024.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 79008 + ... + 84160.

It is an arithmetic number, because the mean of its divisors is an integer number (40742370).

Almost surely, 2^420402352 is an apocalyptic number.

It is an amenable number.

420402352 is a deficient number, since it is larger than the sum of its proper divisors (394445048).

420402352 is a wasteful number, since it uses less digits than its factorization.

420402352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10260 (or 10254 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 420402352 is about 20503.7155657213. The cubic root of 420402352 is about 749.1263023020.

Adding to 420402352 its reverse (253204024), we get a palindrome (673606376).

The spelling of 420402352 in words is "four hundred twenty million, four hundred two thousand, three hundred fifty-two".