1489751972 has 6 divisors (see below), whose sum is σ = 2607065958. Its totient is φ = 744875984.

The previous prime is 1489751971. The next prime is 1489751999. The reversal of 1489751972 is 2791579841.

It can be written as a sum of positive squares in only one way, i.e., 933546916 + 556205056 = 30554^2 + 23584^2 .

It is not an unprimeable number, because it can be changed into a prime (1489751971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186218993 + ... + 186219000.

It is an arithmetic number, because the mean of its divisors is an integer number (434510993).

Almost surely, 2^1489751972 is an apocalyptic number.

It is an amenable number.

1489751972 is a deficient number, since it is larger than the sum of its proper divisors (1117313986).

1489751972 is a wasteful number, since it uses less digits than its factorization.

1489751972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372437997 (or 372437995 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 53.

The square root of 1489751972 is about 38597.3052427239. The cubic root of 1489751972 is about 1142.1013800889.

The spelling of 1489751972 in words is "one billion, four hundred eighty-nine million, seven hundred fifty-one thousand, nine hundred seventy-two".