2770578220 has 48 divisors (see below), whose sum is σ = 6042587040. Its totient is φ = 1065795584.

The previous prime is 2770578211. The next prime is 2770578287. The reversal of 2770578220 is 228750772.

It is a super-2 number, since 2×2770578220² = 15352207346276736800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139767 + ... + 158353.

It is an arithmetic number, because the mean of its divisors is an integer number (125887230).

Almost surely, 2^2770578220 is an apocalyptic number.

2770578220 is a gapful number since it is divisible by the number (20) 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 2770578220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3021293520).

2770578220 is an abundant number, since it is smaller than the sum of its proper divisors (3272008820).

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

2770578220 is a wasteful number, since it uses less digits than its factorization.

2770578220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18882 (or 18880 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 40.

The square root of 2770578220 is about 52636.2823535249. The cubic root of 2770578220 is about 1404.5055896454.

The spelling of 2770578220 in words is "two billion, seven hundred seventy million, five hundred seventy-eight thousand, two hundred twenty".