401072306 has 16 divisors (see below), whose sum is σ = 614150424. Its totient is φ = 196370304.

The previous prime is 401072303. The next prime is 401072317. The reversal of 401072306 is 603270104.

It can be written as a sum of positive squares in 4 ways, for example, as 214886281 + 186186025 = 14659^2 + 13645^2 .

It is not an unprimeable number, because it can be changed into a prime (401072303) 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 7 ways as a sum of consecutive naturals, for example, 55646 + ... + 62438.

Almost surely, 2^401072306 is an apocalyptic number.

401072306 is a deficient number, since it is larger than the sum of its proper divisors (213078118).

401072306 is a wasteful number, since it uses less digits than its factorization.

401072306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7405.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 401072306 is about 20026.7897077889. The cubic root of 401072306 is about 737.4641137762.

The spelling of 401072306 in words is "four hundred one million, seventy-two thousand, three hundred six".