420404002 has 16 divisors (see below), whose sum is σ = 644815872. Its totient is φ = 205476480.

The previous prime is 420403979. The next prime is 420404011. The reversal of 420404002 is 200404024.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90898 + ... + 95410.

It is an arithmetic number, because the mean of its divisors is an integer number (40300992).

Almost surely, 2^420404002 is an apocalyptic number.

420404002 is a deficient number, since it is larger than the sum of its proper divisors (224411870).

420404002 is a wasteful number, since it uses less digits than its factorization.

420404002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 420404002 is about 20503.7558022914. The cubic root of 420404002 is about 749.1272823606.

Adding to 420404002 its reverse (200404024), we get a palindrome (620808026).

The spelling of 420404002 in words is "four hundred twenty million, four hundred four thousand, two".