3056749920 has 384 divisors, whose sum is σ = 12305018880. Its totient is φ = 694241280.

The previous prime is 3056749897. The next prime is 3056749961. The reversal of 3056749920 is 299476503.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8194854 + ... + 8195226.

It is an arithmetic number, because the mean of its divisors is an integer number (32044320).

Almost surely, 2^3056749920 is an apocalyptic number.

3056749920 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 3056749920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6152509440).

3056749920 is an abundant number, since it is smaller than the sum of its proper divisors (9248268960).

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

3056749920 is a wasteful number, since it uses less digits than its factorization.

3056749920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 3056749920 is about 55287.8822166304. The cubic root of 3056749920 is about 1451.2869936954.

The spelling of 3056749920 in words is "three billion, fifty-six million, seven hundred forty-nine thousand, nine hundred twenty".