474842839 has 8 divisors (see below), whose sum is σ = 496283760. Its totient is φ = 453739776.

The previous prime is 474842807. The next prime is 474842873. The reversal of 474842839 is 938248474.

It is a happy number.

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 474842839 - 2⁵ = 474842807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 474842792 and 474842801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474842639) 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, 81589 + ... + 87214.

It is an arithmetic number, because the mean of its divisors is an integer number (62035470).

Almost surely, 2^474842839 is an apocalyptic number.

474842839 is a deficient number, since it is larger than the sum of its proper divisors (21440921).

474842839 is a wasteful number, since it uses less digits than its factorization.

474842839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168929.

The product of its digits is 1548288, while the sum is 49.

The square root of 474842839 is about 21790.8888988036. Note that the first 4 decimals coincide. The cubic root of 474842839 is about 780.1593138312.

The spelling of 474842839 in words is "four hundred seventy-four million, eight hundred forty-two thousand, eight hundred thirty-nine".