406442361 has 32 divisors (see below), whose sum is σ = 614718720. Its totient is φ = 236991744.

The previous prime is 406442347. The next prime is 406442363. The reversal of 406442361 is 163244604.

It is not a de Polignac number, because 406442361 - 2⁶ = 406442297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (406442363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95695 + ... + 99851.

It is an arithmetic number, because the mean of its divisors is an integer number (19209960).

Almost surely, 2^406442361 is an apocalyptic number.

It is an amenable number.

406442361 is a deficient number, since it is larger than the sum of its proper divisors (208276359).

406442361 is a wasteful number, since it uses less digits than its factorization.

406442361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4305.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 406442361 is about 20160.4156951190. The cubic root of 406442361 is about 740.7408948013.

Adding to 406442361 its reverse (163244604), we get a palindrome (569686965).

The spelling of 406442361 in words is "four hundred six million, four hundred forty-two thousand, three hundred sixty-one".