268472019 has 4 divisors (see below), whose sum is σ = 357962696. Its totient is φ = 178981344.

The previous prime is 268472011. The next prime is 268472021. The reversal of 268472019 is 910274862.

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

It is not a de Polignac number, because 268472019 - 2³ = 268472011 is a prime.

It is a super-2 number, since 2×268472019² = 144154449971872722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268472011) 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, 44745334 + ... + 44745339.

It is an arithmetic number, because the mean of its divisors is an integer number (89490674).

Almost surely, 2^268472019 is an apocalyptic number.

268472019 is a deficient number, since it is larger than the sum of its proper divisors (89490677).

268472019 is an equidigital number, since it uses as much as digits as its factorization.

268472019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89490676.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 268472019 is about 16385.1157762159. The cubic root of 268472019 is about 645.1088645042.

The spelling of 268472019 in words is "two hundred sixty-eight million, four hundred seventy-two thousand, nineteen".