420410402 has 8 divisors (see below), whose sum is σ = 630766416. Its totient is φ = 210154932.

The previous prime is 420410381. The next prime is 420410413. The reversal of 420410402 is 204014024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×420410402² = 353489812219603208, which contains 22 as substring.

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, 13628 + ... + 32039.

It is an arithmetic number, because the mean of its divisors is an integer number (78845802).

Almost surely, 2^420410402 is an apocalyptic number.

420410402 is a deficient number, since it is larger than the sum of its proper divisors (210356014).

420410402 is a wasteful number, since it uses less digits than its factorization.

420410402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50272.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 420410402 is about 20503.9118706651. The cubic root of 420410402 is about 749.1310837756.

Adding to 420410402 its reverse (204014024), we get a palindrome (624424426).

The spelling of 420410402 in words is "four hundred twenty million, four hundred ten thousand, four hundred two".