445740419 has 2 divisors, whose sum is σ = 445740420. Its totient is φ = 445740418.

The previous prime is 445740403. The next prime is 445740473. The reversal of 445740419 is 914047544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445740419 - 2⁴ = 445740403 is a prime.

It is a super-2 number, since 2×445740419² = 397369042260591122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (445740499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222870209 + 222870210.

It is an arithmetic number, because the mean of its divisors is an integer number (222870210).

Almost surely, 2^445740419 is an apocalyptic number.

445740419 is a deficient number, since it is larger than the sum of its proper divisors (1).

445740419 is an equidigital number, since it uses as much as digits as its factorization.

445740419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 445740419 is about 21112.5654291467. The cubic root of 445740419 is about 763.8838688236.

The spelling of 445740419 in words is "four hundred forty-five million, seven hundred forty thousand, four hundred nineteen".