420440002 has 8 divisors (see below), whose sum is σ = 630813456. Its totient is φ = 210168852.

The previous prime is 420439979. The next prime is 420440003. The reversal of 420440002 is 200044024.

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

It is not an unprimeable number, because it can be changed into a prime (420440003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14308 + ... + 32335.

It is an arithmetic number, because the mean of its divisors is an integer number (78851682).

Almost surely, 2^420440002 is an apocalyptic number.

420440002 is a deficient number, since it is larger than the sum of its proper divisors (210373454).

420440002 is a wasteful number, since it uses less digits than its factorization.

420440002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51152.

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

The square root of 420440002 is about 20504.6336714412. The cubic root of 420440002 is about 749.1486648183.

Adding to 420440002 its reverse (200044024), we get a palindrome (620484026).

The spelling of 420440002 in words is "four hundred twenty million, four hundred forty thousand, two".