1488669128 has 8 divisors (see below), whose sum is σ = 2791254630. Its totient is φ = 744334560.

The previous prime is 1488669121. The next prime is 1488669139. The reversal of 1488669128 is 8219668841.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1488262084 + 407044 = 38578^2 + 638^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1488669128² = 4432271545320560768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1488669128.

It is not an unprimeable number, because it can be changed into a prime (1488669121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93041813 + ... + 93041828.

Almost surely, 2^1488669128 is an apocalyptic number.

It is an amenable number.

1488669128 is a deficient number, since it is larger than the sum of its proper divisors (1302585502).

1488669128 is a wasteful number, since it uses less digits than its factorization.

1488669128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186083647 (or 186083643 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 53.

The square root of 1488669128 is about 38583.2752368173. The cubic root of 1488669128 is about 1141.8245963441.

The spelling of 1488669128 in words is "one billion, four hundred eighty-eight million, six hundred sixty-nine thousand, one hundred twenty-eight".