1438718374 has 4 divisors (see below), whose sum is σ = 2158077564. Its totient is φ = 719359186.

The previous prime is 1438718321. The next prime is 1438718389. The reversal of 1438718374 is 4738178341.

It is a semiprime because it is the product of two primes.

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, 359679592 + ... + 359679595.

It is an arithmetic number, because the mean of its divisors is an integer number (539519391).

Almost surely, 2^1438718374 is an apocalyptic number.

1438718374 is a deficient number, since it is larger than the sum of its proper divisors (719359190).

1438718374 is an equidigital number, since it uses as much as digits as its factorization.

1438718374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719359189.

The product of its digits is 451584, while the sum is 46.

The square root of 1438718374 is about 37930.4412576495. The cubic root of 1438718374 is about 1128.9081195954.

It can be divided in two parts, 14387 and 18374, that added together give a square (32761 = 181²).

The spelling of 1438718374 in words is "one billion, four hundred thirty-eight million, seven hundred eighteen thousand, three hundred seventy-four".