405480001 has 8 divisors (see below), whose sum is σ = 421785000. Its totient is φ = 389329920.

The previous prime is 405479999. The next prime is 405480011. The reversal of 405480001 is 100084504.

It can be written as a sum of positive squares in 4 ways, for example, as 37761025 + 367718976 = 6145^2 + 19176^2 .

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 405480001 - 2¹ = 405479999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405480011) 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, 33376 + ... + 43873.

It is an arithmetic number, because the mean of its divisors is an integer number (52723125).

Almost surely, 2^405480001 is an apocalyptic number.

It is an amenable number.

405480001 is a deficient number, since it is larger than the sum of its proper divisors (16304999).

405480001 is a wasteful number, since it uses less digits than its factorization.

405480001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77459.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 405480001 is about 20136.5339867615. The cubic root of 405480001 is about 740.1557993117.

The spelling of 405480001 in words is "four hundred five million, four hundred eighty thousand, one".