401166343 has 4 divisors (see below), whose sum is σ = 405673920. Its totient is φ = 396658768.

The previous prime is 401166341. The next prime is 401166347. The reversal of 401166343 is 343661104.

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 401166343 - 2¹ = 401166341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401166341) 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, 2253655 + ... + 2253832.

It is an arithmetic number, because the mean of its divisors is an integer number (101418480).

Almost surely, 2^401166343 is an apocalyptic number.

401166343 is a deficient number, since it is larger than the sum of its proper divisors (4507577).

401166343 is an equidigital number, since it uses as much as digits as its factorization.

401166343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4507576.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 401166343 is about 20029.1373503703. The cubic root of 401166343 is about 737.5217455237.

The spelling of 401166343 in words is "four hundred one million, one hundred sixty-six thousand, three hundred forty-three".