1672684340 has 12 divisors (see below), whose sum is σ = 3512637156. Its totient is φ = 669073728.

The previous prime is 1672684333. The next prime is 1672684381. The reversal of 1672684340 is 434862761.

It can be written as a sum of positive squares in 2 ways, for example, as 1287661456 + 385022884 = 35884^2 + 19622^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41817089 + ... + 41817128.

It is an arithmetic number, because the mean of its divisors is an integer number (292719763).

Almost surely, 2^1672684340 is an apocalyptic number.

1672684340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1672684340 is an abundant number, since it is smaller than the sum of its proper divisors (1839952816).

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

1672684340 is a wasteful number, since it uses less digits than its factorization.

1672684340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83634226 (or 83634224 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 1672684340 is about 40898.4637853306. The cubic root of 1672684340 is about 1187.0563356843.

The spelling of 1672684340 in words is "one billion, six hundred seventy-two million, six hundred eighty-four thousand, three hundred forty".