1520054730 has 192 divisors, whose sum is σ = 4228443648. Its totient is φ = 378362880.

The previous prime is 1520054717. The next prime is 1520054771. The reversal of 1520054730 is 374500251.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1520054694 and 1520054703.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11095222 + ... + 11095358.

It is an arithmetic number, because the mean of its divisors is an integer number (22023144).

Almost surely, 2^1520054730 is an apocalyptic number.

1520054730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1520054730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2114221824).

1520054730 is an abundant number, since it is smaller than the sum of its proper divisors (2708388918).

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

1520054730 is a wasteful number, since it uses less digits than its factorization.

1520054730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 1520054730 is about 38987.8792703579. The cubic root of 1520054730 is about 1149.7932154978.

Adding to 1520054730 its reverse (374500251), we get a palindrome (1894554981).

The spelling of 1520054730 in words is "one billion, five hundred twenty million, fifty-four thousand, seven hundred thirty".