406002351 has 8 divisors (see below), whose sum is σ = 541855744. Its totient is φ = 270408600.

The previous prime is 406002329. The next prime is 406002427. The reversal of 406002351 is 153200604.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 406002351 - 2⁶ = 406002287 is a prime.

It is the 20150-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406002301) by changing a digit.

It is a nontrivial repunit in base 20149.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61231 + ... + 67536.

It is an arithmetic number, because the mean of its divisors is an integer number (67731968).

Almost surely, 2^406002351 is an apocalyptic number.

406002351 is a deficient number, since it is larger than the sum of its proper divisors (135853393).

406002351 is a wasteful number, since it uses less digits than its factorization.

406002351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129821.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 406002351 is about 20149.5000186109. The cubic root of 406002351 is about 740.4734923186.

Adding to 406002351 its reverse (153200604), we get a palindrome (559202955).

The spelling of 406002351 in words is "four hundred six million, two thousand, three hundred fifty-one".