1520491752 has 96 divisors (see below), whose sum is σ = 4470036480. Its totient is φ = 464123520.

The previous prime is 1520491741. The next prime is 1520491771. The reversal of 1520491752 is 2571940251.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112477 + ... + 125267.

It is an arithmetic number, because the mean of its divisors is an integer number (46562880).

Almost surely, 2^1520491752 is an apocalyptic number.

1520491752 is a gapful number since it is divisible by the number (12) 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 1520491752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2235018240).

1520491752 is an abundant number, since it is smaller than the sum of its proper divisors (2949544728).

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

1520491752 is a wasteful number, since it uses less digits than its factorization.

1520491752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12943 (or 12936 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 1520491752 is about 38993.4834555724. The cubic root of 1520491752 is about 1149.9033950356.

The spelling of 1520491752 in words is "one billion, five hundred twenty million, four hundred ninety-one thousand, seven hundred fifty-two".