1993774734 has 96 divisors (see below), whose sum is σ = 5318037504. Its totient is φ = 527281920.

The previous prime is 1993774729. The next prime is 1993774753. The reversal of 1993774734 is 4374773991.

1993774734 is a `hidden beast` number, since 19 + 93 + 77 + 473 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78742 + ... + 100934.

It is an arithmetic number, because the mean of its divisors is an integer number (55396224).

Almost surely, 2^1993774734 is an apocalyptic number.

1993774734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1993774734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2659018752).

1993774734 is an abundant number, since it is smaller than the sum of its proper divisors (3324262770).

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

1993774734 is a wasteful number, since it uses less digits than its factorization.

1993774734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22262 (or 22259 counting only the distinct ones).

The product of its digits is 4000752, while the sum is 54.

The square root of 1993774734 is about 44651.7047154977. The cubic root of 1993774734 is about 1258.6124672961.

The spelling of 1993774734 in words is "one billion, nine hundred ninety-three million, seven hundred seventy-four thousand, seven hundred thirty-four".