406358069 has 8 divisors (see below), whose sum is σ = 442534680. Its totient is φ = 370884096.

The previous prime is 406358059. The next prime is 406358081. The reversal of 406358069 is 960853604.

It can be written as a sum of positive squares in 4 ways, for example, as 47748100 + 358609969 = 6910^2 + 18937^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 406358069 - 2²⁴ = 389580853 is a prime.

It is a super-2 number, since 2×406358069² = 330253760482817522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406358009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174452 + ... + 176765.

It is an arithmetic number, because the mean of its divisors is an integer number (55316835).

Almost surely, 2^406358069 is an apocalyptic number.

It is an amenable number.

406358069 is a deficient number, since it is larger than the sum of its proper divisors (36176611).

406358069 is a wasteful number, since it uses less digits than its factorization.

406358069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351319.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 406358069 is about 20158.3250544285. The cubic root of 406358069 is about 740.6896838922.

The spelling of 406358069 in words is "four hundred six million, three hundred fifty-eight thousand, sixty-nine".