366421543 has 4 divisors (see below), whose sum is σ = 369306880. Its totient is φ = 363536208.

The previous prime is 366421537. The next prime is 366421591. The reversal of 366421543 is 345124663.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 366421543 - 2¹⁷ = 366290471 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 366421499 and 366421508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366421343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1442478 + ... + 1442731.

It is an arithmetic number, because the mean of its divisors is an integer number (92326720).

Almost surely, 2^366421543 is an apocalyptic number.

366421543 is a deficient number, since it is larger than the sum of its proper divisors (2885337).

366421543 is a wasteful number, since it uses less digits than its factorization.

366421543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885336.

The product of its digits is 51840, while the sum is 34.

The square root of 366421543 is about 19142.1405020442. The cubic root of 366421543 is about 715.5835248186.

The spelling of 366421543 in words is "three hundred sixty-six million, four hundred twenty-one thousand, five hundred forty-three".