1494007728 has 20 divisors (see below), whose sum is σ = 3859520088. Its totient is φ = 498002560.

The previous prime is 1494007727. The next prime is 1494007751. The reversal of 1494007728 is 8277004941.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1494007728.

It is not an unprimeable number, because it can be changed into a prime (1494007727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15562533 + ... + 15562628.

Almost surely, 2^1494007728 is an apocalyptic number.

It is an amenable number.

1494007728 is an abundant number, since it is smaller than the sum of its proper divisors (2365512360).

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

1494007728 is a wasteful number, since it uses less digits than its factorization.

1494007728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31125172 (or 31125166 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 1494007728 is about 38652.3961482338. The cubic root of 1494007728 is about 1143.1878884270.

The spelling of 1494007728 in words is "one billion, four hundred ninety-four million, seven thousand, seven hundred twenty-eight".