338720437 has 8 divisors (see below), whose sum is σ = 369711360. Its totient is φ = 307762560.

The previous prime is 338720423. The next prime is 338720441. The reversal of 338720437 is 734027833.

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 338720437 - 2¹⁵ = 338687669 is a prime.

It is a super-2 number, since 2×338720437² = 229463068882941938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 338720396 and 338720405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338720497) 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, 16389 + ... + 30757.

It is an arithmetic number, because the mean of its divisors is an integer number (46213920).

Almost surely, 2^338720437 is an apocalyptic number.

It is an amenable number.

338720437 is a deficient number, since it is larger than the sum of its proper divisors (30990923).

338720437 is a wasteful number, since it uses less digits than its factorization.

338720437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16523.

The product of its (nonzero) digits is 84672, while the sum is 37.

The square root of 338720437 is about 18404.3591847149. The cubic root of 338720437 is about 697.0765401970.

The spelling of 338720437 in words is "three hundred thirty-eight million, seven hundred twenty thousand, four hundred thirty-seven".