420878830 has 16 divisors (see below), whose sum is σ = 771876864. Its totient is φ = 165174880.

The previous prime is 420878813. The next prime is 420878837. The reversal of 420878830 is 38878024.

420878830 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420878837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396526 + ... + 397585.

It is an arithmetic number, because the mean of its divisors is an integer number (48242304).

Almost surely, 2^420878830 is an apocalyptic number.

420878830 is a deficient number, since it is larger than the sum of its proper divisors (350998034).

420878830 is a wasteful number, since it uses less digits than its factorization.

420878830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794171.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 420878830 is about 20515.3315839642. The cubic root of 420878830 is about 749.4092117849.

It can be divided in two parts, 4208 and 78830, that added together give a palindrome (83038).

The spelling of 420878830 in words is "four hundred twenty million, eight hundred seventy-eight thousand, eight hundred thirty".