406667340 has 72 divisors (see below), whose sum is σ = 1262269008. Its totient is φ = 105920640.

The previous prime is 406667329. The next prime is 406667351. The reversal of 406667340 is 43766604.

It is an interprime number because it is at equal distance from previous prime (406667329) and next prime (406667351).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 406667295 and 406667304.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 18531 + ... + 34010.

It is an arithmetic number, because the mean of its divisors is an integer number (17531514).

Almost surely, 2^406667340 is an apocalyptic number.

It is an amenable number.

406667340 is an abundant number, since it is smaller than the sum of its proper divisors (855601668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406667340 is a wasteful number, since it uses less digits than its factorization.

406667340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52599 (or 52594 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 406667340 is about 20165.9946444503. The cubic root of 406667340 is about 740.8775442767.

The spelling of 406667340 in words is "four hundred six million, six hundred sixty-seven thousand, three hundred forty".