406004419 has 2 divisors, whose sum is σ = 406004420. Its totient is φ = 406004418.

The previous prime is 406004413. The next prime is 406004449. The reversal of 406004419 is 914400604.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406004419 is a prime.

It is a super-2 number, since 2×406004419² = 329679176495055122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (406004413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203002209 + 203002210.

It is an arithmetic number, because the mean of its divisors is an integer number (203002210).

Almost surely, 2^406004419 is an apocalyptic number.

406004419 is a deficient number, since it is larger than the sum of its proper divisors (1).

406004419 is an equidigital number, since it uses as much as digits as its factorization.

406004419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 406004419 is about 20149.5513349553. The cubic root of 406004419 is about 740.4747495335.

The spelling of 406004419 in words is "four hundred six million, four thousand, four hundred nineteen".