1415530420 has 24 divisors (see below), whose sum is σ = 2973514824. Its totient is φ = 566040576.

The previous prime is 1415530399. The next prime is 1415530439. The reversal of 1415530420 is 240355141.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 41938576 + 1373591844 = 6476^2 + 37062^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 72772 + ... + 90148.

It is an arithmetic number, because the mean of its divisors is an integer number (123896451).

Almost surely, 2^1415530420 is an apocalyptic number.

1415530420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1415530420 is an abundant number, since it is smaller than the sum of its proper divisors (1557984404).

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

1415530420 is a wasteful number, since it uses less digits than its factorization.

1415530420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21459 (or 21457 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1415530420 is about 37623.5354532240. The cubic root of 1415530420 is about 1122.8103370914.

Adding to 1415530420 its reverse (240355141), we get a palindrome (1655885561).

The spelling of 1415530420 in words is "one billion, four hundred fifteen million, five hundred thirty thousand, four hundred twenty".