401431411 has 4 divisors (see below), whose sum is σ = 422559400. Its totient is φ = 380303424.

The previous prime is 401431399. The next prime is 401431417. The reversal of 401431411 is 114134104.

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 401431411 - 2¹¹ = 401429363 is a prime.

It is a super-2 number, since 2×401431411² = 322294355474901842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 21127969 = 401431411 / (4 + 0 + 1 + 4 + 3 + 1 + 4 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401431417) 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, 10563966 + ... + 10564003.

It is an arithmetic number, because the mean of its divisors is an integer number (105639850).

Almost surely, 2^401431411 is an apocalyptic number.

401431411 is a deficient number, since it is larger than the sum of its proper divisors (21127989).

401431411 is a wasteful number, since it uses less digits than its factorization.

401431411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21127988.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 401431411 is about 20035.7533175072. The cubic root of 401431411 is about 737.6841472940.

Adding to 401431411 its reverse (114134104), we get a palindrome (515565515).

The spelling of 401431411 in words is "four hundred one million, four hundred thirty-one thousand, four hundred eleven".