406376405 has 8 divisors (see below), whose sum is σ = 488927232. Its totient is φ = 324250768.

The previous prime is 406376371. The next prime is 406376407. The reversal of 406376405 is 504673604.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406376405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406376407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104189 + ... + 108018.

It is an arithmetic number, because the mean of its divisors is an integer number (61115904).

Almost surely, 2^406376405 is an apocalyptic number.

It is an amenable number.

406376405 is a deficient number, since it is larger than the sum of its proper divisors (82550827).

406376405 is a wasteful number, since it uses less digits than its factorization.

406376405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212595.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 406376405 is about 20158.7798489889. The cubic root of 406376405 is about 740.7008243804.

The spelling of 406376405 in words is "four hundred six million, three hundred seventy-six thousand, four hundred five".