1489919860 has 96 divisors (see below), whose sum is σ = 3686788224. Its totient is φ = 498624000.

The previous prime is 1489919839. The next prime is 1489919887. The reversal of 1489919860 is 689199841.

It is a super-2 number, since 2×1489919860² = 4439722378444839200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1403730 + ... + 1404790.

It is an arithmetic number, because the mean of its divisors is an integer number (38404044).

Almost surely, 2^1489919860 is an apocalyptic number.

1489919860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1489919860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1843394112).

1489919860 is an abundant number, since it is smaller than the sum of its proper divisors (2196868364).

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

1489919860 is a wasteful number, since it uses less digits than its factorization.

1489919860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585 (or 1583 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 55.

The square root of 1489919860 is about 38599.4800483115. The cubic root of 1489919860 is about 1142.1442816183.

It can be divided in two parts, 148991 and 9860, that added together give a palindrome (158851).

The spelling of 1489919860 in words is "one billion, four hundred eighty-nine million, nine hundred nineteen thousand, eight hundred sixty".