671310420 has 72 divisors (see below), whose sum is σ = 2066104992. Its totient is φ = 162740160.

The previous prime is 671310397. The next prime is 671310427. The reversal of 671310420 is 24013176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671310427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38974 + ... + 53493.

Almost surely, 2^671310420 is an apocalyptic number.

671310420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

671310420 is an abundant number, since it is smaller than the sum of its proper divisors (1394794572).

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

671310420 is a wasteful number, since it uses less digits than its factorization.

671310420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92501 (or 92488 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 671310420 is about 25909.6588167425. The cubic root of 671310420 is about 875.6041194052.

Adding to 671310420 its reverse (24013176), we get a palindrome (695323596).

The spelling of 671310420 in words is "six hundred seventy-one million, three hundred ten thousand, four hundred twenty".