838425029 has 16 divisors (see below), whose sum is σ = 914657520. Its totient is φ = 763914240.

The previous prime is 838425017. The next prime is 838425121. The reversal of 838425029 is 920524838.

It can be written as a sum of positive squares in 8 ways, for example, as 3330625 + 835094404 = 1825^2 + 28898^2 .

It is a cyclic number.

It is not a de Polignac number, because 838425029 - 2¹⁶ = 838359493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838425229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681587 + ... + 682815.

It is an arithmetic number, because the mean of its divisors is an integer number (57166095).

Almost surely, 2^838425029 is an apocalyptic number.

It is an amenable number.

838425029 is a deficient number, since it is larger than the sum of its proper divisors (76232491).

838425029 is a wasteful number, since it uses less digits than its factorization.

838425029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880.

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

The square root of 838425029 is about 28955.5699132309. The cubic root of 838425029 is about 942.9487262333.

The spelling of 838425029 in words is "eight hundred thirty-eight million, four hundred twenty-five thousand, twenty-nine".