338400438 has 16 divisors (see below), whose sum is σ = 677483760. Its totient is φ = 112686336.

The previous prime is 338400373. The next prime is 338400443. The reversal of 338400438 is 834004833.

It is a super-2 number, since 2×338400438² = 229029712877183688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 338400399 and 338400408.

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, 21895 + ... + 34002.

It is an arithmetic number, because the mean of its divisors is an integer number (42342735).

Almost surely, 2^338400438 is an apocalyptic number.

338400438 is an abundant number, since it is smaller than the sum of its proper divisors (339083322).

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

338400438 is a wasteful number, since it uses less digits than its factorization.

338400438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56911.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 338400438 is about 18395.6635650906. The cubic root of 338400438 is about 696.8569549055.

The spelling of 338400438 in words is "three hundred thirty-eight million, four hundred thousand, four hundred thirty-eight".