401211743 has 4 divisors (see below), whose sum is σ = 401615160. Its totient is φ = 400808328.

The previous prime is 401211731. The next prime is 401211751. The reversal of 401211743 is 347112104.

It is a happy number.

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 401211743 - 2¹⁸ = 400949599 is a prime.

It is a super-3 number, since 3×401211743³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401211763) 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, 200213 + ... + 202206.

It is an arithmetic number, because the mean of its divisors is an integer number (100403790).

Almost surely, 2^401211743 is an apocalyptic number.

401211743 is a deficient number, since it is larger than the sum of its proper divisors (403417).

401211743 is an equidigital number, since it uses as much as digits as its factorization.

401211743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403416.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 401211743 is about 20030.2706671677. The cubic root of 401211743 is about 737.5495662559.

Adding to 401211743 its reverse (347112104), we get a palindrome (748323847).

The spelling of 401211743 in words is "four hundred one million, two hundred eleven thousand, seven hundred forty-three".