405376445 has 8 divisors (see below), whose sum is σ = 486881280. Its totient is φ = 324014800.

The previous prime is 405376427. The next prime is 405376451. The reversal of 405376445 is 544673504.

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 405376445 - 2⁸ = 405376189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 405376399 and 405376408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29465 + ... + 40974.

It is an arithmetic number, because the mean of its divisors is an integer number (60860160).

Almost surely, 2^405376445 is an apocalyptic number.

It is an amenable number.

405376445 is a deficient number, since it is larger than the sum of its proper divisors (81504835).

405376445 is a wasteful number, since it uses less digits than its factorization.

405376445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71595.

The product of its (nonzero) digits is 201600, while the sum is 38.

The square root of 405376445 is about 20133.9624763731. The cubic root of 405376445 is about 740.0927842022.

The spelling of 405376445 in words is "four hundred five million, three hundred seventy-six thousand, four hundred forty-five".