406122269 has 4 divisors (see below), whose sum is σ = 464139744. Its totient is φ = 348104796.

The previous prime is 406122259. The next prime is 406122349. The reversal of 406122269 is 962221604.

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 406122269 - 2¹² = 406118173 is a prime.

It is a super-2 number, since 2×406122269² = 329870594755416722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406122239) 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, 29008727 + ... + 29008740.

It is an arithmetic number, because the mean of its divisors is an integer number (116034936).

Almost surely, 2^406122269 is an apocalyptic number.

It is an amenable number.

406122269 is a deficient number, since it is larger than the sum of its proper divisors (58017475).

406122269 is an equidigital number, since it uses as much as digits as its factorization.

406122269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58017474.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 406122269 is about 20152.4755055055. The cubic root of 406122269 is about 740.5463879222.

The spelling of 406122269 in words is "four hundred six million, one hundred twenty-two thousand, two hundred sixty-nine".