420671320 has 16 divisors (see below), whose sum is σ = 946510560. Its totient is φ = 168268512.

The previous prime is 420671299. The next prime is 420671327. The reversal of 420671320 is 23176024.

It is a super-3 number, since 3×420671320³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420671327) 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, 5258352 + ... + 5258431.

It is an arithmetic number, because the mean of its divisors is an integer number (59156910).

Almost surely, 2^420671320 is an apocalyptic number.

420671320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420671320 is an abundant number, since it is smaller than the sum of its proper divisors (525839240).

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

420671320 is a wasteful number, since it uses less digits than its factorization.

420671320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10516794 (or 10516790 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 420671320 is about 20510.2735232858. The cubic root of 420671320 is about 749.2860286904.

The spelling of 420671320 in words is "four hundred twenty million, six hundred seventy-one thousand, three hundred twenty".