406401469 has 8 divisors (see below), whose sum is σ = 429090080. Its totient is φ = 383842800.

The previous prime is 406401409. The next prime is 406401481. The reversal of 406401469 is 964104604.

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 406401469 - 2⁷ = 406401341 is a prime.

It is a super-2 number, since 2×406401469² = 330324308010715922, 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 (406401409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26022 + ... + 38599.

It is an arithmetic number, because the mean of its divisors is an integer number (53636260).

Almost surely, 2^406401469 is an apocalyptic number.

It is an amenable number.

406401469 is a deficient number, since it is larger than the sum of its proper divisors (22688611).

406401469 is a wasteful number, since it uses less digits than its factorization.

406401469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64971.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 406401469 is about 20159.4015040130. The cubic root of 406401469 is about 740.7160520885.

The spelling of 406401469 in words is "four hundred six million, four hundred one thousand, four hundred sixty-nine".