401446613 has 4 divisors (see below), whose sum is σ = 401498028. Its totient is φ = 401395200.

The previous prime is 401446589. The next prime is 401446631. The reversal of 401446613 is 316644104.

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

It can be written as a sum of positive squares in 2 ways, for example, as 169859089 + 231587524 = 13033^2 + 15218^2 .

It is a cyclic number.

It is not a de Polignac number, because 401446613 - 2¹⁶ = 401381077 is a prime.

It is a super-2 number, since 2×401446613² = 322318766178343538, 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 (401446813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11306 + ... + 30507.

It is an arithmetic number, because the mean of its divisors is an integer number (100374507).

Almost surely, 2^401446613 is an apocalyptic number.

It is an amenable number.

401446613 is a deficient number, since it is larger than the sum of its proper divisors (51415).

401446613 is an equidigital number, since it uses as much as digits as its factorization.

401446613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51414.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 401446613 is about 20036.1326857256. The cubic root of 401446613 is about 737.6934590822.

The spelling of 401446613 in words is "four hundred one million, four hundred forty-six thousand, six hundred thirteen".