401432311 has 16 divisors (see below), whose sum is σ = 469638144. Its totient is φ = 335975904.

The previous prime is 401432293. The next prime is 401432327. The reversal of 401432311 is 113234104.

It is a cyclic number.

It is not a de Polignac number, because 401432311 - 2¹⁵ = 401399543 is a prime.

It is a super-2 number, since 2×401432311² = 322295800629601442, 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 (401432371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170901 + ... + 173233.

It is an arithmetic number, because the mean of its divisors is an integer number (29352384).

Almost surely, 2^401432311 is an apocalyptic number.

401432311 is a deficient number, since it is larger than the sum of its proper divisors (68205833).

401432311 is a wasteful number, since it uses less digits than its factorization.

401432311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 401432311 is about 20035.7757773439. The cubic root of 401432311 is about 737.6846985839.

Adding to 401432311 its reverse (113234104), we get a palindrome (514666415).

The spelling of 401432311 in words is "four hundred one million, four hundred thirty-two thousand, three hundred eleven".