338406551 has 8 divisors (see below), whose sum is σ = 397203360. Its totient is φ = 282223008.

The previous prime is 338406547. The next prime is 338406557. The reversal of 338406551 is 155604833.

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 338406551 - 2² = 338406547 is a prime.

It is a super-2 number, since 2×338406551² = 229037987519431202, 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 (338406557) 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, 653036 + ... + 653553.

It is an arithmetic number, because the mean of its divisors is an integer number (49650420).

Almost surely, 2^338406551 is an apocalyptic number.

338406551 is a deficient number, since it is larger than the sum of its proper divisors (58796809).

338406551 is a wasteful number, since it uses less digits than its factorization.

338406551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306633.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 338406551 is about 18395.8297176289. The cubic root of 338406551 is about 696.8611509806.

The spelling of 338406551 in words is "three hundred thirty-eight million, four hundred six thousand, five hundred fifty-one".