838181925 has 120 divisors (see below), whose sum is σ = 1836489600. Its totient is φ = 369774720.

The previous prime is 838181873. The next prime is 838181933. The reversal of 838181925 is 529181838.

It is a happy number.

838181925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 838181925 - 2¹⁹ = 837657637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 410056 + ... + 412094.

It is an arithmetic number, because the mean of its divisors is an integer number (15304080).

Almost surely, 2^838181925 is an apocalyptic number.

It is an amenable number.

838181925 is an abundant number, since it is smaller than the sum of its proper divisors (998307675).

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

838181925 is a wasteful number, since it uses less digits than its factorization.

838181925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097 (or 2083 counting only the distinct ones).

The product of its digits is 138240, while the sum is 45.

The square root of 838181925 is about 28951.3717291599. The cubic root of 838181925 is about 942.8575804307.

The spelling of 838181925 in words is "eight hundred thirty-eight million, one hundred eighty-one thousand, nine hundred twenty-five".