1494278818 has 16 divisors (see below), whose sum is σ = 2437410744. Its totient is φ = 684184320.

The previous prime is 1494278809. The next prime is 1494278827. The reversal of 1494278818 is 8188724941.

It is an interprime number because it is at equal distance from previous prime (1494278809) and next prime (1494278827).

It can be written as a sum of positive squares in 4 ways, for example, as 1278277009 + 216001809 = 35753^2 + 14697^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592653 + ... + 595168.

Almost surely, 2^1494278818 is an apocalyptic number.

1494278818 is a deficient number, since it is larger than the sum of its proper divisors (943131926).

1494278818 is a wasteful number, since it uses less digits than its factorization.

1494278818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187877.

The product of its digits is 1032192, while the sum is 52.

The square root of 1494278818 is about 38655.9027575350. The cubic root of 1494278818 is about 1143.2570286455.

The spelling of 1494278818 in words is "one billion, four hundred ninety-four million, two hundred seventy-eight thousand, eight hundred eighteen".