338906663 has 8 divisors (see below), whose sum is σ = 350098560. Its totient is φ = 327731040.

The previous prime is 338906657. The next prime is 338906719. The reversal of 338906663 is 366609833.

It is a happy number.

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 338906663 - 2⁶ = 338906599 is a prime.

It is a super-2 number, since 2×338906663² = 229715452451591138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338908663) 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, 49781 + ... + 56177.

It is an arithmetic number, because the mean of its divisors is an integer number (43762320).

Almost surely, 2^338906663 is an apocalyptic number.

338906663 is a deficient number, since it is larger than the sum of its proper divisors (11191897).

338906663 is a wasteful number, since it uses less digits than its factorization.

338906663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8137.

The product of its (nonzero) digits is 419904, while the sum is 44.

The square root of 338906663 is about 18409.4177800386. The cubic root of 338906663 is about 697.2042659738.

The spelling of 338906663 in words is "three hundred thirty-eight million, nine hundred six thousand, six hundred sixty-three".