406269289 has 4 divisors (see below), whose sum is σ = 415717456. Its totient is φ = 396821124.

The previous prime is 406269251. The next prime is 406269293. The reversal of 406269289 is 982962604.

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 406269289 - 2⁹ = 406268777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406269209) 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, 4724019 + ... + 4724104.

It is an arithmetic number, because the mean of its divisors is an integer number (103929364).

Almost surely, 2^406269289 is an apocalyptic number.

It is an amenable number.

406269289 is a deficient number, since it is larger than the sum of its proper divisors (9448167).

406269289 is an equidigital number, since it uses as much as digits as its factorization.

406269289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9448166.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 406269289 is about 20156.1228662657. The cubic root of 406269289 is about 740.6357386777.

The spelling of 406269289 in words is "four hundred six million, two hundred sixty-nine thousand, two hundred eighty-nine".