406019156 has 12 divisors (see below), whose sum is σ = 710685780. Its totient is φ = 202966080.

The previous prime is 406019153. The next prime is 406019203. The reversal of 406019156 is 651910604.

It can be written as a sum of positive squares in 2 ways, for example, as 55056400 + 350962756 = 7420^2 + 18734^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406019153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19640 + ... + 34608.

It is an arithmetic number, because the mean of its divisors is an integer number (59223815).

Almost surely, 2^406019156 is an apocalyptic number.

It is an amenable number.

406019156 is a deficient number, since it is larger than the sum of its proper divisors (304666624).

406019156 is a wasteful number, since it uses less digits than its factorization.

406019156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21754 (or 21752 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 406019156 is about 20149.9170221617. The cubic root of 406019156 is about 740.4837085857.

The spelling of 406019156 in words is "four hundred six million, nineteen thousand, one hundred fifty-six".