406151266 has 4 divisors (see below), whose sum is σ = 609226902. Its totient is φ = 203075632.

The previous prime is 406151261. The next prime is 406151309. The reversal of 406151266 is 662151604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 299463025 + 106688241 = 17305^2 + 10329^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (406151261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101537815 + ... + 101537818.

Almost surely, 2^406151266 is an apocalyptic number.

406151266 is a deficient number, since it is larger than the sum of its proper divisors (203075636).

406151266 is a wasteful number, since it uses less digits than its factorization.

406151266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203075635.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 406151266 is about 20153.1949328140. The cubic root of 406151266 is about 740.5640124278.

The spelling of 406151266 in words is "four hundred six million, one hundred fifty-one thousand, two hundred sixty-six".