869435438 has 16 divisors (see below), whose sum is σ = 1316010240. Its totient is φ = 430783200.

The previous prime is 869435429. The next prime is 869435467. The reversal of 869435438 is 834534968.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98528 + ... + 106988.

It is an arithmetic number, because the mean of its divisors is an integer number (82250640).

Almost surely, 2^869435438 is an apocalyptic number.

869435438 is a deficient number, since it is larger than the sum of its proper divisors (446574802).

869435438 is a wasteful number, since it uses less digits than its factorization.

869435438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8923.

The product of its digits is 2488320, while the sum is 50.

The square root of 869435438 is about 29486.1906322265. The cubic root of 869435438 is about 954.4337306133.

The spelling of 869435438 in words is "eight hundred sixty-nine million, four hundred thirty-five thousand, four hundred thirty-eight".