1840212463 has 2 divisors, whose sum is σ = 1840212464. Its totient is φ = 1840212462.

The previous prime is 1840212401. The next prime is 1840212467. The reversal of 1840212463 is 3642120481.

It is a strong prime.

It is an emirp because it is prime and its reverse (3642120481) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1840212463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1840212467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 920106231 + 920106232.

It is an arithmetic number, because the mean of its divisors is an integer number (920106232).

Almost surely, 2^1840212463 is an apocalyptic number.

1840212463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1840212463 is an equidigital number, since it uses as much as digits as its factorization.

1840212463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 1840212463 is about 42897.6976421812. The cubic root of 1840212463 is about 1225.4322979047.

The spelling of 1840212463 in words is "one billion, eight hundred forty million, two hundred twelve thousand, four hundred sixty-three".