405479641 has 4 divisors (see below), whose sum is σ = 463405312. Its totient is φ = 347553972.

The previous prime is 405479617. The next prime is 405479671. The reversal of 405479641 is 146974504.

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 405479641 - 2¹¹ = 405477593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 405479594 and 405479603.

It is not an unprimeable number, because it can be changed into a prime (405479671) 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, 28962825 + ... + 28962838.

It is an arithmetic number, because the mean of its divisors is an integer number (115851328).

Almost surely, 2^405479641 is an apocalyptic number.

It is an amenable number.

405479641 is a deficient number, since it is larger than the sum of its proper divisors (57925671).

405479641 is an equidigital number, since it uses as much as digits as its factorization.

405479641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57925670.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 405479641 is about 20136.5250477832. The cubic root of 405479641 is about 740.1555802658.

The spelling of 405479641 in words is "four hundred five million, four hundred seventy-nine thousand, six hundred forty-one".