193055740 has 24 divisors (see below), whose sum is σ = 429265872. Its totient is φ = 72679680.

The previous prime is 193055699. The next prime is 193055741. The reversal of 193055740 is 47550391.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 193055696 and 193055705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193055741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283566 + ... + 284245.

It is an arithmetic number, because the mean of its divisors is an integer number (17886078).

Almost surely, 2^193055740 is an apocalyptic number.

193055740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

193055740 is an abundant number, since it is smaller than the sum of its proper divisors (236210132).

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

193055740 is a wasteful number, since it uses less digits than its factorization.

193055740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567837 (or 567835 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 193055740 is about 13894.4499711216. The cubic root of 193055740 is about 577.9552852308.

The spelling of 193055740 in words is "one hundred ninety-three million, fifty-five thousand, seven hundred forty".