423019398409 has 8 divisors (see below), whose sum is σ = 424677355200. Its totient is φ = 421362899376.

The previous prime is 423019398383. The next prime is 423019398437. The reversal of 423019398409 is 904893910324.

It is a happy number.

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 423019398409 - 2⁷ = 423019398281 is a prime.

It is a super-2 number, since 2×423019398409² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423019398479) 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, 218892 + ... + 945490.

It is an arithmetic number, because the mean of its divisors is an integer number (53084669400).

Almost surely, 2^423019398409 is an apocalyptic number.

It is an amenable number.

423019398409 is a deficient number, since it is larger than the sum of its proper divisors (1657956791).

423019398409 is a wasteful number, since it uses less digits than its factorization.

423019398409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728879.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 423019398409 in words is "four hundred twenty-three billion, nineteen million, three hundred ninety-eight thousand, four hundred nine".