401469331 has 4 divisors (see below), whose sum is σ = 425085192. Its totient is φ = 377853472.

The previous prime is 401469317. The next prime is 401469337. The reversal of 401469331 is 133964104.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401469331 is a prime.

It is a super-2 number, since 2×401469331² = 322355247467175122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401469293 and 401469302.

It is not an unprimeable number, because it can be changed into a prime (401469337) 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, 11807905 + ... + 11807938.

It is an arithmetic number, because the mean of its divisors is an integer number (106271298).

Almost surely, 2^401469331 is an apocalyptic number.

401469331 is a deficient number, since it is larger than the sum of its proper divisors (23615861).

401469331 is a wasteful number, since it uses less digits than its factorization.

401469331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23615860.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 401469331 is about 20036.6996034776. The cubic root of 401469331 is about 737.7073742608.

The spelling of 401469331 in words is "four hundred one million, four hundred sixty-nine thousand, three hundred thirty-one".