1673671420 has 24 divisors (see below), whose sum is σ = 3721458384. Its totient is φ = 630087936.

The previous prime is 1673671399. The next prime is 1673671421. The reversal of 1673671420 is 241763761.

It is a self number, because there is not a number n which added to its sum of digits gives 1673671420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1673671421) 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, 2460942 + ... + 2461621.

It is an arithmetic number, because the mean of its divisors is an integer number (155060766).

Almost surely, 2^1673671420 is an apocalyptic number.

1673671420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1673671420 is an abundant number, since it is smaller than the sum of its proper divisors (2047786964).

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

1673671420 is a wasteful number, since it uses less digits than its factorization.

1673671420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4922589 (or 4922587 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 1673671420 is about 40910.5294514750. The cubic root of 1673671420 is about 1187.2897906029.

The spelling of 1673671420 in words is "one billion, six hundred seventy-three million, six hundred seventy-one thousand, four hundred twenty".