338578428 has 24 divisors (see below), whose sum is σ = 798895440. Its totient is φ = 111591040.

The previous prime is 338578417. The next prime is 338578433. The reversal of 338578428 is 824875833.

It is a super-2 number, since 2×338578428² = 229270703813902368, which contains 22 as substring.

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, 157443 + ... + 159578.

It is an arithmetic number, because the mean of its divisors is an integer number (33287310).

Almost surely, 2^338578428 is an apocalyptic number.

It is an amenable number.

338578428 is an abundant number, since it is smaller than the sum of its proper divisors (460317012).

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

338578428 is a wasteful number, since it uses less digits than its factorization.

338578428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317117 (or 317115 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 48.

The square root of 338578428 is about 18400.5007540556. The cubic root of 338578428 is about 696.9791098199.

The spelling of 338578428 in words is "three hundred thirty-eight million, five hundred seventy-eight thousand, four hundred twenty-eight".