1844142379 has 2 divisors, whose sum is σ = 1844142380. Its totient is φ = 1844142378.

The previous prime is 1844142317. The next prime is 1844142397. The reversal of 1844142379 is 9732414481.

Together with next prime (1844142397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1844142379 - 2²³ = 1835753771 is a prime.

It is a super-2 number, since 2×1844142379² = 6801722228047559282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1844142479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 922071189 + 922071190.

It is an arithmetic number, because the mean of its divisors is an integer number (922071190).

Almost surely, 2^1844142379 is an apocalyptic number.

1844142379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1844142379 is an equidigital number, since it uses as much as digits as its factorization.

1844142379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 43.

The square root of 1844142379 is about 42943.4788879522. The cubic root of 1844142379 is about 1226.3040128016.

The spelling of 1844142379 in words is "one billion, eight hundred forty-four million, one hundred forty-two thousand, three hundred seventy-nine".