1671942384 has 400 divisors, whose sum is σ = 6034488768. Its totient is φ = 435953664.

The previous prime is 1671942317. The next prime is 1671942407. The reversal of 1671942384 is 4832491761.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5706142 + ... + 5706434.

Almost surely, 2^1671942384 is an apocalyptic number.

1671942384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1671942384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3017244384).

1671942384 is an abundant number, since it is smaller than the sum of its proper divisors (4362546384).

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

1671942384 is a wasteful number, since it uses less digits than its factorization.

1671942384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 359 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 1671942384 is about 40889.3920717831. The cubic root of 1671942384 is about 1186.8807947277.

The spelling of 1671942384 in words is "one billion, six hundred seventy-one million, nine hundred forty-two thousand, three hundred eighty-four".