3299481378 has 30 divisors (see below), whose sum is σ = 7394920929. Its totient is φ = 1099583424.

The previous prime is 3299481377. The next prime is 3299481379. The reversal of 3299481378 is 8731849923.

3299481378 is a `hidden beast` number, since 3 + 2 + 99 + 481 + 3 + 78 = 666.

It is an interprime number because it is at equal distance from previous prime (3299481377) and next prime (3299481379).

It can be written as a sum of positive squares in 2 ways, for example, as 1719180369 + 1580301009 = 41463^2 + 39753^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=40617.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (3299481377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 728850 + ... + 733362.

Almost surely, 2^3299481378 is an apocalyptic number.

3299481378 is an abundant number, since it is smaller than the sum of its proper divisors (4095439551).

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

3299481378 is an frugal number, since it uses more digits than its factorization.

3299481378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9040 (or 4518 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 3299481378 is about 57441.1122629080. The cubic root of 3299481378 is about 1488.7275562098.

The spelling of 3299481378 in words is "three billion, two hundred ninety-nine million, four hundred eighty-one thousand, three hundred seventy-eight".