338648428 has 12 divisors (see below), whose sum is σ = 613070640. Its totient is φ = 163485392.

The previous prime is 338648423. The next prime is 338648477. The reversal of 338648428 is 824846833.

338648428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×338648428² = 229365515573742368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (338648423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1459576 + ... + 1459807.

It is an arithmetic number, because the mean of its divisors is an integer number (51089220).

Almost surely, 2^338648428 is an apocalyptic number.

It is an amenable number.

338648428 is a deficient number, since it is larger than the sum of its proper divisors (274422212).

338648428 is a wasteful number, since it uses less digits than its factorization.

338648428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919416 (or 2919414 counting only the distinct ones).

The product of its digits is 884736, while the sum is 46.

The square root of 338648428 is about 18402.4027778983. The cubic root of 338648428 is about 697.0271392391.

It can be divided in two parts, 338648 and 428, that added together give a triangular number (339076 = T₈₂₃).

The spelling of 338648428 in words is "three hundred thirty-eight million, six hundred forty-eight thousand, four hundred twenty-eight".