193894844 has 48 divisors (see below), whose sum is σ = 405244896. Its totient is φ = 80006400.

The previous prime is 193894819. The next prime is 193894847. The reversal of 193894844 is 448498391.

It is a junction number, because it is equal to n+sod(n) for n = 193894792 and 193894801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193894847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32114 + ... + 37670.

It is an arithmetic number, because the mean of its divisors is an integer number (8442602).

Almost surely, 2^193894844 is an apocalyptic number.

It is an amenable number.

193894844 is an abundant number, since it is smaller than the sum of its proper divisors (211350052).

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

193894844 is a wasteful number, since it uses less digits than its factorization.

193894844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5646 (or 5644 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The square root of 193894844 is about 13924.6128851038. The cubic root of 193894844 is about 578.7914231275.

The spelling of 193894844 in words is "one hundred ninety-three million, eight hundred ninety-four thousand, eight hundred forty-four".