1515241420 has 48 divisors (see below), whose sum is σ = 3967181568. Its totient is φ = 472282560.

The previous prime is 1515241411. The next prime is 1515241423. The reversal of 1515241420 is 241425151.

It is not an unprimeable number, because it can be changed into a prime (1515241423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490422 + ... + 493501.

It is an arithmetic number, because the mean of its divisors is an integer number (82649616).

Almost surely, 2^1515241420 is an apocalyptic number.

1515241420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1515241420 is an abundant number, since it is smaller than the sum of its proper divisors (2451940148).

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

1515241420 is a wasteful number, since it uses less digits than its factorization.

1515241420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983950 (or 983948 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1515241420 is about 38926.1020396340. The cubic root of 1515241420 is about 1148.5783112128.

Adding to 1515241420 its reverse (241425151), we get a palindrome (1756666571).

The spelling of 1515241420 in words is "one billion, five hundred fifteen million, two hundred forty-one thousand, four hundred twenty".