405198469 has 16 divisors (see below), whose sum is σ = 452430720. Its totient is φ = 360319680.

The previous prime is 405198467. The next prime is 405198473. The reversal of 405198469 is 964891504.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 405198469 - 2¹ = 405198467 is a prime.

It is a super-2 number, since 2×405198469² = 328371598559887922, 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 (405198467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220384 + ... + 222214.

It is an arithmetic number, because the mean of its divisors is an integer number (28276920).

Almost surely, 2^405198469 is an apocalyptic number.

It is an amenable number.

405198469 is a deficient number, since it is larger than the sum of its proper divisors (47232251).

405198469 is a wasteful number, since it uses less digits than its factorization.

405198469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 405198469 is about 20129.5421954897. The cubic root of 405198469 is about 739.9844585243.

The spelling of 405198469 in words is "four hundred five million, one hundred ninety-eight thousand, four hundred sixty-nine".