406889413 has 8 divisors (see below), whose sum is σ = 465199232. Its totient is φ = 348625296.

The previous prime is 406889411. The next prime is 406889423. The reversal of 406889413 is 314988604.

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

It is a 12-Lehmer number, since φ(406889413) divides (406889413-1)¹².

It is a cyclic number.

It is not a de Polignac number, because 406889413 - 2¹ = 406889411 is a prime.

It is a super-2 number, since 2×406889413² = 331117988822969138, which contains 22 as substring.

It is the 20172-nd Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 406889413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406889411) by changing a digit.

It is a nontrivial repunit in base 20171.

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, 10456 + ... + 30382.

It is an arithmetic number, because the mean of its divisors is an integer number (58149904).

Almost surely, 2^406889413 is an apocalyptic number.

It is an amenable number.

406889413 is a deficient number, since it is larger than the sum of its proper divisors (58309819).

406889413 is a wasteful number, since it uses less digits than its factorization.

406889413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22851.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 406889413 is about 20171.5000185906. The cubic root of 406889413 is about 741.0123792660.

The spelling of 406889413 in words is "four hundred six million, eight hundred eighty-nine thousand, four hundred thirteen".