838780049 has 8 divisors (see below), whose sum is σ = 861796320. Its totient is φ = 816057216.

The previous prime is 838780039. The next prime is 838780057. The reversal of 838780049 is 940087838.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 838780049 - 2¹² = 838775953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 838779985 and 838780012.

It is not an unprimeable number, because it can be changed into a prime (838780039) 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, 67559 + ... + 79004.

It is an arithmetic number, because the mean of its divisors is an integer number (107724540).

Almost surely, 2^838780049 is an apocalyptic number.

It is an amenable number.

838780049 is a deficient number, since it is larger than the sum of its proper divisors (23016271).

838780049 is a wasteful number, since it uses less digits than its factorization.

838780049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146719.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 838780049 is about 28961.6996911438. The cubic root of 838780049 is about 943.0818005117.

The spelling of 838780049 in words is "eight hundred thirty-eight million, seven hundred eighty thousand, forty-nine".