405572473 has 4 divisors (see below), whose sum is σ = 418655488. Its totient is φ = 392489460.

The previous prime is 405572459. The next prime is 405572509. The reversal of 405572473 is 374275504.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 405572473 - 2⁵ = 405572441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405572413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6541461 + ... + 6541522.

It is an arithmetic number, because the mean of its divisors is an integer number (104663872).

Almost surely, 2^405572473 is an apocalyptic number.

It is an amenable number.

405572473 is a deficient number, since it is larger than the sum of its proper divisors (13083015).

405572473 is a wasteful number, since it uses less digits than its factorization.

405572473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13083014.

The product of its (nonzero) digits is 117600, while the sum is 37.

The square root of 405572473 is about 20138.8299809100. The cubic root of 405572473 is about 740.2120606025.

The spelling of 405572473 in words is "four hundred five million, five hundred seventy-two thousand, four hundred seventy-three".