420754830 has 32 divisors (see below), whose sum is σ = 1015870464. Its totient is φ = 111528096.

The previous prime is 420754813. The next prime is 420754843. The reversal of 420754830 is 38457024.

It is a junction number, because it is equal to n+sod(n) for n = 420754791 and 420754800.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 36982 + ... + 47001.

It is an arithmetic number, because the mean of its divisors is an integer number (31745952).

Almost surely, 2^420754830 is an apocalyptic number.

420754830 is an abundant number, since it is smaller than the sum of its proper divisors (595115634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420754830 is a wasteful number, since it uses less digits than its factorization.

420754830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84160.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 420754830 is about 20512.3092312884. The cubic root of 420754830 is about 749.3356071722.

The spelling of 420754830 in words is "four hundred twenty million, seven hundred fifty-four thousand, eight hundred thirty".