1427447438 has 4 divisors (see below), whose sum is σ = 2141171160. Its totient is φ = 713723718.

The previous prime is 1427447429. The next prime is 1427447453. The reversal of 1427447438 is 8347447241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8347447241 = 7 ⋅1192492463.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356861858 + ... + 356861861.

It is an arithmetic number, because the mean of its divisors is an integer number (535292790).

Almost surely, 2^1427447438 is an apocalyptic number.

1427447438 is a deficient number, since it is larger than the sum of its proper divisors (713723722).

1427447438 is an equidigital number, since it uses as much as digits as its factorization.

1427447438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713723721.

The product of its digits is 602112, while the sum is 44.

The square root of 1427447438 is about 37781.5753774244. The cubic root of 1427447438 is about 1125.9524281437.

The spelling of 1427447438 in words is "one billion, four hundred twenty-seven million, four hundred forty-seven thousand, four hundred thirty-eight".