2765211420 has 24 divisors (see below), whose sum is σ = 7742592144. Its totient is φ = 737389696.

The previous prime is 2765211419. The next prime is 2765211443. The reversal of 2765211420 is 241125672.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23043369 + ... + 23043488.

It is an arithmetic number, because the mean of its divisors is an integer number (322608006).

Almost surely, 2^2765211420 is an apocalyptic number.

2765211420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2765211420 is an abundant number, since it is smaller than the sum of its proper divisors (4977380724).

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

2765211420 is a wasteful number, since it uses less digits than its factorization.

2765211420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46086869 (or 46086867 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 2765211420 is about 52585.2775974417. The cubic root of 2765211420 is about 1403.5981289088.

It can be divided in two parts, 2765 and 211420, that added together give a triangular number (214185 = T₆₅₄).

The spelling of 2765211420 in words is "two billion, seven hundred sixty-five million, two hundred eleven thousand, four hundred twenty".