1494723456 has 80 divisors (see below), whose sum is σ = 4448303640. Its totient is φ = 498237696.

The previous prime is 1494723413. The next prime is 1494723457. The reversal of 1494723456 is 6543274941.

1494723456 is a `hidden beast` number, since 149 + 472 + 34 + 5 + 6 = 666.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1494723457) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 61716 + ... + 82451.

Almost surely, 2^1494723456 is an apocalyptic number.

1494723456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1494723456 is an abundant number, since it is smaller than the sum of its proper divisors (2953580184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1494723456 is an equidigital number, since it uses as much as digits as its factorization.

1494723456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144193 (or 144172 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 1494723456 is about 38661.6535600846. The cubic root of 1494723456 is about 1143.3704133545.

The spelling of 1494723456 in words is "one billion, four hundred ninety-four million, seven hundred twenty-three thousand, four hundred fifty-six".