428348019 has 16 divisors (see below), whose sum is σ = 623643264. Its totient is φ = 259358400.

The previous prime is 428348003. The next prime is 428348029. The reversal of 428348019 is 910843824.

It is not a de Polignac number, because 428348019 - 2⁴ = 428348003 is a prime.

It is a super-2 number, since 2×428348019² = 366964050762448722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (428348029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32799 + ... + 43959.

It is an arithmetic number, because the mean of its divisors is an integer number (38977704).

Almost surely, 2^428348019 is an apocalyptic number.

428348019 is a deficient number, since it is larger than the sum of its proper divisors (195295245).

428348019 is a wasteful number, since it uses less digits than its factorization.

428348019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12338.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 428348019 is about 20696.5702231070. The cubic root of 428348019 is about 753.8164101890.

The spelling of 428348019 in words is "four hundred twenty-eight million, three hundred forty-eight thousand, nineteen".