1497443728 has 30 divisors (see below), whose sum is σ = 3189033302. Its totient is φ = 680655360.

The previous prime is 1497443699. The next prime is 1497443729. The reversal of 1497443728 is 8273447941.

It can be written as a sum of positive squares in only one way, i.e., 1168819344 + 328624384 = 34188^2 + 18128^2 .

It is not an unprimeable number, because it can be changed into a prime (1497443729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 384801 + ... + 388672.

Almost surely, 2^1497443728 is an apocalyptic number.

It is an amenable number.

1497443728 is an abundant number, since it is smaller than the sum of its proper divisors (1691589574).

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

1497443728 is a wasteful number, since it uses less digits than its factorization.

1497443728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773503 (or 773486 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 49.

The square root of 1497443728 is about 38696.8180604039. The cubic root of 1497443728 is about 1144.0636059309.

The spelling of 1497443728 in words is "one billion, four hundred ninety-seven million, four hundred forty-three thousand, seven hundred twenty-eight".