1489940547 has 8 divisors (see below), whose sum is σ = 1989738240. Its totient is φ = 991718280.

The previous prime is 1489940539. The next prime is 1489940591. The reversal of 1489940547 is 7450499841.

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

It is not a de Polignac number, because 1489940547 - 2³ = 1489940539 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1489940547.

It is not an unprimeable number, because it can be changed into a prime (1489940527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391647 + ... + 395432.

It is an arithmetic number, because the mean of its divisors is an integer number (248717280).

Almost surely, 2^1489940547 is an apocalyptic number.

1489940547 is a deficient number, since it is larger than the sum of its proper divisors (499797693).

1489940547 is an equidigital number, since it uses as much as digits as its factorization.

1489940547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787713.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The square root of 1489940547 is about 38599.7480173122. The cubic root of 1489940547 is about 1142.1495676810.

The spelling of 1489940547 in words is "one billion, four hundred eighty-nine million, nine hundred forty thousand, five hundred forty-seven".