406667131 has 8 divisors (see below), whose sum is σ = 439864880. Its totient is φ = 373743072.

The previous prime is 406667123. The next prime is 406667141. The reversal of 406667131 is 131766604.

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

It is a cyclic number.

It is not a de Polignac number, because 406667131 - 2³ = 406667123 is a prime.

It is a super-2 number, since 2×406667131² = 330756310871542322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (406667141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65325 + ... + 71278.

It is an arithmetic number, because the mean of its divisors is an integer number (54983110).

Almost surely, 2^406667131 is an apocalyptic number.

406667131 is a deficient number, since it is larger than the sum of its proper divisors (33197749).

406667131 is a wasteful number, since it uses less digits than its factorization.

406667131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136845.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 406667131 is about 20165.9894624588. The cubic root of 406667131 is about 740.8774173561.

The spelling of 406667131 in words is "four hundred six million, six hundred sixty-seven thousand, one hundred thirty-one".