1606874380 has 12 divisors (see below), whose sum is σ = 3374436240. Its totient is φ = 642749744.

The previous prime is 1606874377. The next prime is 1606874387. The reversal of 1606874380 is 834786061.

It is not an unprimeable number, because it can be changed into a prime (1606874387) 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, 40171840 + ... + 40171879.

It is an arithmetic number, because the mean of its divisors is an integer number (281203020).

Almost surely, 2^1606874380 is an apocalyptic number.

1606874380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1606874380 is an abundant number, since it is smaller than the sum of its proper divisors (1767561860).

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

1606874380 is a wasteful number, since it uses less digits than its factorization.

1606874380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80343728 (or 80343726 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 1606874380 is about 40085.8376487258. The cubic root of 1606874380 is about 1171.2797694478.

The spelling of 1606874380 in words is "one billion, six hundred six million, eight hundred seventy-four thousand, three hundred eighty".