338421837 has 8 divisors (see below), whose sum is σ = 485939104. Its totient is φ = 208259568.

The previous prime is 338421799. The next prime is 338421883. The reversal of 338421837 is 738124833.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 338421837 - 2⁶ = 338421773 is a prime.

It is a super-2 number, since 2×338421837² = 229058679516909138, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 8677483 = 338421837 / (3 + 3 + 8 + 4 + 2 + 1 + 8 + 3 + 7).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 338421795 and 338421804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338421887) 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, 4338703 + ... + 4338780.

It is an arithmetic number, because the mean of its divisors is an integer number (60742388).

Almost surely, 2^338421837 is an apocalyptic number.

It is an amenable number.

338421837 is a deficient number, since it is larger than the sum of its proper divisors (147517267).

338421837 is a wasteful number, since it uses less digits than its factorization.

338421837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8677499.

The product of its digits is 96768, while the sum is 39.

The square root of 338421837 is about 18396.2451875376. The cubic root of 338421837 is about 696.8716433495.

The spelling of 338421837 in words is "three hundred thirty-eight million, four hundred twenty-one thousand, eight hundred thirty-seven".