1489693812 has 48 divisors (see below), whose sum is σ = 3541097280. Its totient is φ = 487314432.

The previous prime is 1489693801. The next prime is 1489693819. The reversal of 1489693812 is 2183969841.

1489693812 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1489693812² = 4438375307022182688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489693819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219364 + ... + 226052.

It is an arithmetic number, because the mean of its divisors is an integer number (73772860).

Almost surely, 2^1489693812 is an apocalyptic number.

1489693812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1489693812 is an abundant number, since it is smaller than the sum of its proper divisors (2051403468).

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

1489693812 is a wasteful number, since it uses less digits than its factorization.

1489693812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7040 (or 7038 counting only the distinct ones).

The product of its digits is 746496, while the sum is 51.

The square root of 1489693812 is about 38596.5518148966. The cubic root of 1489693812 is about 1142.0865173283.

The spelling of 1489693812 in words is "one billion, four hundred eighty-nine million, six hundred ninety-three thousand, eight hundred twelve".