3078865920 has 352 divisors, whose sum is σ = 11241272448. Its totient is φ = 712507392.

The previous prime is 3078865861. The next prime is 3078866023. The reversal of 3078865920 is 295688703.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 3078865920.

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, 3394107 + ... + 3395013.

Almost surely, 2^3078865920 is an apocalyptic number.

3078865920 is a gapful number since it is divisible by the number (30) 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 3078865920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5620636224).

3078865920 is an abundant number, since it is smaller than the sum of its proper divisors (8162406528).

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

3078865920 is a wasteful number, since it uses less digits than its factorization.

3078865920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965 (or 947 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 3078865920 is about 55487.5294097692. The cubic root of 3078865920 is about 1454.7786723015.

The spelling of 3078865920 in words is "three billion, seventy-eight million, eight hundred sixty-five thousand, nine hundred twenty".