406043619 has 4 divisors (see below), whose sum is σ = 541391496. Its totient is φ = 270695744.

The previous prime is 406043609. The next prime is 406043621. The reversal of 406043619 is 916340604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 406043619 - 2²¹ = 403946467 is a prime.

It is a super-2 number, since 2×406043619² = 329742841061234322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 406043619.

It is not an unprimeable number, because it can be changed into a prime (406043609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67673934 + ... + 67673939.

It is an arithmetic number, because the mean of its divisors is an integer number (135347874).

Almost surely, 2^406043619 is an apocalyptic number.

406043619 is a deficient number, since it is larger than the sum of its proper divisors (135347877).

406043619 is a wasteful number, since it uses less digits than its factorization.

406043619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135347876.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 406043619 is about 20150.5240378507. The cubic root of 406043619 is about 740.4985798784.

The spelling of 406043619 in words is "four hundred six million, forty-three thousand, six hundred nineteen".