671274020 has 24 divisors (see below), whose sum is σ = 1458286200. Its totient is φ = 259250432.

The previous prime is 671274013. The next prime is 671274061. The reversal of 671274020 is 20472176.

It can be written as a sum of positive squares in 4 ways, for example, as 92582884 + 578691136 = 9622^2 + 24056^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578105 + ... + 579264.

It is an arithmetic number, because the mean of its divisors is an integer number (60761925).

Almost surely, 2^671274020 is an apocalyptic number.

It is an amenable number.

671274020 is an abundant number, since it is smaller than the sum of its proper divisors (787012180).

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

671274020 is a wasteful number, since it uses less digits than its factorization.

671274020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157407 (or 1157405 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 671274020 is about 25908.9563664768. The cubic root of 671274020 is about 875.5882933606.

The spelling of 671274020 in words is "six hundred seventy-one million, two hundred seventy-four thousand, twenty".