390144019 has 2 divisors, whose sum is σ = 390144020. Its totient is φ = 390144018.

The previous prime is 390144017. The next prime is 390144061. The reversal of 390144019 is 910441093.

It is a weak prime.

It is an emirp because it is prime and its reverse (910441093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 390144019 - 2¹ = 390144017 is a prime.

It is a super-2 number, since 2×390144019² = 304424711122944722, which contains 22 as substring.

Together with 390144017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (390144011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195072009 + 195072010.

It is an arithmetic number, because the mean of its divisors is an integer number (195072010).

Almost surely, 2^390144019 is an apocalyptic number.

390144019 is a deficient number, since it is larger than the sum of its proper divisors (1).

390144019 is an equidigital number, since it uses as much as digits as its factorization.

390144019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 390144019 is about 19752.0636643364. The cubic root of 390144019 is about 730.7042799701.

The spelling of 390144019 in words is "three hundred ninety million, one hundred forty-four thousand, nineteen".