243546406 has 8 divisors (see below), whose sum is σ = 366836184. Its totient is φ = 121267680.

The previous prime is 243546397. The next prime is 243546419. The reversal of 243546406 is 604645342.

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

It is a super-3 number, since 3×243546406³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252160 + ... + 253123.

It is an arithmetic number, because the mean of its divisors is an integer number (45854523).

Almost surely, 2^243546406 is an apocalyptic number.

243546406 is a deficient number, since it is larger than the sum of its proper divisors (123289778).

243546406 is a wasteful number, since it uses less digits than its factorization.

243546406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505526.

The product of its (nonzero) digits is 69120, while the sum is 34.

The square root of 243546406 is about 15605.9734076411. The cubic root of 243546406 is about 624.4925211759.

It can be divided in two parts, 2435 and 46406, that added together give a square (48841 = 221²).

The spelling of 243546406 in words is "two hundred forty-three million, five hundred forty-six thousand, four hundred six".