405022227 has 4 divisors (see below), whose sum is σ = 540029640. Its totient is φ = 270014816.

The previous prime is 405022213. The next prime is 405022243. The reversal of 405022227 is 722220504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 405022227 - 2⁸ = 405021971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 405022197 and 405022206.

It is not an unprimeable number, because it can be changed into a prime (405022027) 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, 67503702 + ... + 67503707.

It is an arithmetic number, because the mean of its divisors is an integer number (135007410).

Almost surely, 2^405022227 is an apocalyptic number.

405022227 is a deficient number, since it is larger than the sum of its proper divisors (135007413).

405022227 is a wasteful number, since it uses less digits than its factorization.

405022227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135007412.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 405022227 is about 20125.1640241763. The cubic root of 405022227 is about 739.8771569888.

The spelling of 405022227 in words is "four hundred five million, twenty-two thousand, two hundred twenty-seven".