193473940 has 96 divisors (see below), whose sum is σ = 473558400. Its totient is φ = 65845760.

The previous prime is 193473937. The next prime is 193473971. The reversal of 193473940 is 49374391.

It is a happy number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 193473893 and 193473902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1080771 + ... + 1080949.

It is an arithmetic number, because the mean of its divisors is an integer number (4932900).

Almost surely, 2^193473940 is an apocalyptic number.

193473940 is a gapful number since it is divisible by the number (10) 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 193473940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236779200).

193473940 is an abundant number, since it is smaller than the sum of its proper divisors (280084460).

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

193473940 is a wasteful number, since it uses less digits than its factorization.

193473940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 193473940 is about 13909.4910043466. The cubic root of 193473940 is about 578.3723091513.

The spelling of 193473940 in words is "one hundred ninety-three million, four hundred seventy-three thousand, nine hundred forty".