424291919 has 4 divisors (see below), whose sum is σ = 424871496. Its totient is φ = 423712344.

The previous prime is 424291897. The next prime is 424291957. The reversal of 424291919 is 919192424.

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 424291919 - 2²⁰ = 423243343 is a prime.

It is a super-2 number, since 2×424291919² = 360047265057405122, 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 (424291999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288689 + ... + 290154.

It is an arithmetic number, because the mean of its divisors is an integer number (106217874).

Almost surely, 2^424291919 is an apocalyptic number.

424291919 is a deficient number, since it is larger than the sum of its proper divisors (579577).

424291919 is an equidigital number, since it uses as much as digits as its factorization.

424291919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579576.

The product of its digits is 46656, while the sum is 41.

The square root of 424291919 is about 20598.3474822618. The cubic root of 424291919 is about 751.4295218549.

The spelling of 424291919 in words is "four hundred twenty-four million, two hundred ninety-one thousand, nine hundred nineteen".