1520414044420 has 96 divisors (see below), whose sum is σ = 3400042867200. Its totient is φ = 569117767680.

The previous prime is 1520414044399. The next prime is 1520414044439. The reversal of 1520414044420 is 244404140251.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108045985 + ... + 108060055.

It is an arithmetic number, because the mean of its divisors is an integer number (35417113200).

Almost surely, 2^{1520414044420} is an apocalyptic number.

1520414044420 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 1520414044420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1700021433600).

1520414044420 is an abundant number, since it is smaller than the sum of its proper divisors (1879628822780).

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

1520414044420 is a wasteful number, since it uses less digits than its factorization.

1520414044420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15893 (or 15891 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 1520414044420 its reverse (244404140251), we get a palindrome (1764818184671).

The spelling of 1520414044420 in words is "one trillion, five hundred twenty billion, four hundred fourteen million, forty-four thousand, four hundred twenty".