404010019 has 8 divisors (see below), whose sum is σ = 481800960. Its totient is φ = 331237896.

The previous prime is 404010001. The next prime is 404010031. The reversal of 404010019 is 910010404.

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 404010019 - 2¹⁵ = 403977251 is a prime.

It is a super-2 number, since 2×404010019² = 326448190904760722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404009978 and 404010005.

It is not an unprimeable number, because it can be changed into a prime (404010059) 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, 1254529 + ... + 1254850.

It is an arithmetic number, because the mean of its divisors is an integer number (60225120).

Almost surely, 2^404010019 is an apocalyptic number.

404010019 is a deficient number, since it is larger than the sum of its proper divisors (77790941).

404010019 is a wasteful number, since it uses less digits than its factorization.

404010019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509409.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 404010019 is about 20100.0004726368. Note that the first 3 decimals coincide. The cubic root of 404010019 is about 739.2602901667.

Subtracting from 404010019 its sum of digits (19), we obtain a square (404010000 = 20100²).

The spelling of 404010019 in words is "four hundred four million, ten thousand, nineteen".