1344138278 has 32 divisors (see below), whose sum is σ = 2330546688. Its totient is φ = 569520000.

The previous prime is 1344138259. The next prime is 1344138287. The reversal of 1344138278 is 8728314431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478478 + ... + 481278.

It is an arithmetic number, because the mean of its divisors is an integer number (72829584).

Almost surely, 2^1344138278 is an apocalyptic number.

1344138278 is a deficient number, since it is larger than the sum of its proper divisors (986408410).

1344138278 is a wasteful number, since it uses less digits than its factorization.

1344138278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188.

The product of its digits is 129024, while the sum is 41.

The square root of 1344138278 is about 36662.4914319799. The cubic root of 1344138278 is about 1103.6075163297.

The spelling of 1344138278 in words is "one billion, three hundred forty-four million, one hundred thirty-eight thousand, two hundred seventy-eight".