1993845414 has 128 divisors (see below), whose sum is σ = 4656807936. Its totient is φ = 563472000.

The previous prime is 1993845407. The next prime is 1993845431. The reversal of 1993845414 is 4145483991.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11525032 + ... + 11525204.

It is an arithmetic number, because the mean of its divisors is an integer number (36381312).

Almost surely, 2^1993845414 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1993845414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2328403968).

1993845414 is an abundant number, since it is smaller than the sum of its proper divisors (2662962522).

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

1993845414 is a wasteful number, since it uses less digits than its factorization.

1993845414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394.

The product of its digits is 622080, while the sum is 48.

The square root of 1993845414 is about 44652.4961676276. The cubic root of 1993845414 is about 1258.6273398686.

The spelling of 1993845414 in words is "one billion, nine hundred ninety-three million, eight hundred forty-five thousand, four hundred fourteen".