420160406 has 16 divisors (see below), whose sum is σ = 676458864. Its totient is φ = 195012864.

The previous prime is 420160399. The next prime is 420160409. The reversal of 420160406 is 604061024.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420160409) 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 7 ways as a sum of consecutive naturals, for example, 82160 + ... + 87123.

It is an arithmetic number, because the mean of its divisors is an integer number (42278679).

Almost surely, 2^420160406 is an apocalyptic number.

420160406 is a deficient number, since it is larger than the sum of its proper divisors (256298458).

420160406 is a wasteful number, since it uses less digits than its factorization.

420160406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169375.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 420160406 is about 20497.8146640075. The cubic root of 420160406 is about 748.9825646876.

The spelling of 420160406 in words is "four hundred twenty million, one hundred sixty thousand, four hundred six".