454240019 has 2 divisors, whose sum is σ = 454240020. Its totient is φ = 454240018.

The previous prime is 454239979. The next prime is 454240027. The reversal of 454240019 is 910042454.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 454240019 - 2¹² = 454235923 is a prime.

It is a super-2 number, since 2×454240019² = 412667989722240722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 454239973 and 454240000.

It is not a weakly prime, because it can be changed into another prime (454240219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227120009 + 227120010.

It is an arithmetic number, because the mean of its divisors is an integer number (227120010).

Almost surely, 2^454240019 is an apocalyptic number.

454240019 is a deficient number, since it is larger than the sum of its proper divisors (1).

454240019 is an equidigital number, since it uses as much as digits as its factorization.

454240019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 454240019 is about 21312.9073333508. The cubic root of 454240019 is about 768.7087026177.

The spelling of 454240019 in words is "four hundred fifty-four million, two hundred forty thousand, nineteen".