3812399520 has 48 divisors (see below), whose sum is σ = 12009060000. Its totient is φ = 1016639744.

The previous prime is 3812399497. The next prime is 3812399527. The reversal of 3812399520 is 259932183.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (3812399527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3970770 + ... + 3971729.

It is an arithmetic number, because the mean of its divisors is an integer number (250188750).

Almost surely, 2^3812399520 is an apocalyptic number.

3812399520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3812399520 is an abundant number, since it is smaller than the sum of its proper divisors (8196660480).

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

3812399520 is a wasteful number, since it uses less digits than its factorization.

3812399520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7942517 (or 7942509 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 3812399520 is about 61744.6315075246. The cubic root of 3812399520 is about 1562.1862181211.

The spelling of 3812399520 in words is "three billion, eight hundred twelve million, three hundred ninety-nine thousand, five hundred twenty".