7428019 has 2 divisors, whose sum is σ = 7428020. Its totient is φ = 7428018.

The previous prime is 7428017. The next prime is 7428037. The reversal of 7428019 is 9108247.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7428019 - 2¹ = 7428017 is a prime.

It is a super-2 number, since 2×7428019² = 110350932528722, which contains 22 as substring.

Together with 7428017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7428013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3714009 + 3714010.

It is an arithmetic number, because the mean of its divisors is an integer number (3714010).

Almost surely, 2^7428019 is an apocalyptic number.

7428019 is a deficient number, since it is larger than the sum of its proper divisors (1).

7428019 is an equidigital number, since it uses as much as digits as its factorization.

7428019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 7428019 is about 2725.4392306562. The cubic root of 7428019 is about 195.1151544252.

The spelling of 7428019 in words is "seven million, four hundred twenty-eight thousand, nineteen".