401404264 has 16 divisors (see below), whose sum is σ = 753657120. Its totient is φ = 200429040.

The previous prime is 401404261. The next prime is 401404271. The reversal of 401404264 is 462404104.

It is a super-2 number, since 2×401404264² = 322250766314763392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401404261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27822 + ... + 39709.

It is an arithmetic number, because the mean of its divisors is an integer number (47103570).

Almost surely, 2^401404264 is an apocalyptic number.

It is an amenable number.

401404264 is a deficient number, since it is larger than the sum of its proper divisors (352252856).

401404264 is a wasteful number, since it uses less digits than its factorization.

401404264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68280 (or 68276 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 401404264 is about 20035.0758421325. The cubic root of 401404264 is about 737.6675181660.

Adding to 401404264 its reverse (462404104), we get a palindrome (863808368).

The spelling of 401404264 in words is "four hundred one million, four hundred four thousand, two hundred sixty-four".