1520348412 has 24 divisors (see below), whose sum is σ = 3869978112. Its totient is φ = 460711600.

The previous prime is 1520348411. The next prime is 1520348413. The reversal of 1520348412 is 2148430251.

It is an interprime number because it is at equal distance from previous prime (1520348411) and next prime (1520348413).

It is a super-2 number, since 2×1520348412² = 4622918587741843488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1520348412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520348411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5758764 + ... + 5759027.

It is an arithmetic number, because the mean of its divisors is an integer number (161249088).

Almost surely, 2^1520348412 is an apocalyptic number.

1520348412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1520348412 is an abundant number, since it is smaller than the sum of its proper divisors (2349629700).

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

1520348412 is a wasteful number, since it uses less digits than its factorization.

1520348412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11517809 (or 11517807 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 1520348412 is about 38991.6454128317. The cubic root of 1520348412 is about 1149.8672592849.

Adding to 1520348412 its reverse (2148430251), we get a palindrome (3668778663).

The spelling of 1520348412 in words is "one billion, five hundred twenty million, three hundred forty-eight thousand, four hundred twelve".