838925042 has 4 divisors (see below), whose sum is σ = 1258387566. Its totient is φ = 419462520.

The previous prime is 838925041. The next prime is 838925057. The reversal of 838925042 is 240529838.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 456292321 + 382632721 = 21361^2 + 19561^2 .

It is not an unprimeable number, because it can be changed into a prime (838925041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209731259 + ... + 209731262.

Almost surely, 2^838925042 is an apocalyptic number.

838925042 is a deficient number, since it is larger than the sum of its proper divisors (419462524).

838925042 is a wasteful number, since it uses less digits than its factorization.

838925042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419462523.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 838925042 is about 28964.2027682448. The cubic root of 838925042 is about 943.1361383091.

The spelling of 838925042 in words is "eight hundred thirty-eight million, nine hundred twenty-five thousand, forty-two".