1489372540 has 12 divisors (see below), whose sum is σ = 3127682376. Its totient is φ = 595749008.

The previous prime is 1489372531. The next prime is 1489372571. The reversal of 1489372540 is 452739841.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37234294 + ... + 37234333.

It is an arithmetic number, because the mean of its divisors is an integer number (260640198).

Almost surely, 2^1489372540 is an apocalyptic number.

1489372540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1489372540 is an abundant number, since it is smaller than the sum of its proper divisors (1638309836).

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

1489372540 is a wasteful number, since it uses less digits than its factorization.

1489372540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74468636 (or 74468634 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 1489372540 is about 38592.3896642848. The cubic root of 1489372540 is about 1142.0044094489.

The spelling of 1489372540 in words is "one billion, four hundred eighty-nine million, three hundred seventy-two thousand, five hundred forty".