1438134374 has 4 divisors (see below), whose sum is σ = 2157201564. Its totient is φ = 719067186.

The previous prime is 1438134367. The next prime is 1438134403. The reversal of 1438134374 is 4734318341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4734318341 = 1667 ⋅2840023.

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, 359533592 + ... + 359533595.

It is an arithmetic number, because the mean of its divisors is an integer number (539300391).

Almost surely, 2^1438134374 is an apocalyptic number.

1438134374 is a deficient number, since it is larger than the sum of its proper divisors (719067190).

1438134374 is an equidigital number, since it uses as much as digits as its factorization.

1438134374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719067189.

The product of its digits is 96768, while the sum is 38.

The square root of 1438134374 is about 37922.7421740570. The cubic root of 1438134374 is about 1128.7553513218.

The spelling of 1438134374 in words is "one billion, four hundred thirty-eight million, one hundred thirty-four thousand, three hundred seventy-four".