1378460266 has 8 divisors (see below), whose sum is σ = 2189319300. Its totient is φ = 648687168.

The previous prime is 1378460231. The next prime is 1378460267. The reversal of 1378460266 is 6620648731.

It can be written as a sum of positive squares in 2 ways, for example, as 1344762241 + 33698025 = 36671^2 + 5805^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1378460267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20271441 + ... + 20271508.

Almost surely, 2^1378460266 is an apocalyptic number.

1378460266 is a deficient number, since it is larger than the sum of its proper divisors (810859034).

1378460266 is a wasteful number, since it uses less digits than its factorization.

1378460266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40542968.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 1378460266 is about 37127.6213350654. The cubic root of 1378460266 is about 1112.9220593769.

The spelling of 1378460266 in words is "one billion, three hundred seventy-eight million, four hundred sixty thousand, two hundred sixty-six".