1539732480 has 352 divisors, whose sum is σ = 5793959808. Its totient is φ = 344064000.

The previous prime is 1539732479. The next prime is 1539732487. The reversal of 1539732480 is 842379351.

It is a tau number, because it is divible by the number of its divisors (352).

It is a super-2 number, since 2×1539732480² = 4741552219933900800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1539732487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2196130 + ... + 2196830.

Almost surely, 2^1539732480 is an apocalyptic number.

1539732480 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 1539732480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2896979904).

1539732480 is an abundant number, since it is smaller than the sum of its proper divisors (4254227328).

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

1539732480 is a wasteful number, since it uses less digits than its factorization.

1539732480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 1539732480 is about 39239.4250722408. The cubic root of 1539732480 is about 1154.7334779798.

The spelling of 1539732480 in words is "one billion, five hundred thirty-nine million, seven hundred thirty-two thousand, four hundred eighty".