2750405620 has 12 divisors (see below), whose sum is σ = 5775851844. Its totient is φ = 1100162240.

The previous prime is 2750405587. The next prime is 2750405621. The reversal of 2750405620 is 265040572.

It can be written as a sum of positive squares in 2 ways, for example, as 1231588836 + 1518816784 = 35094^2 + 38972^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2750405621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68760121 + ... + 68760160.

It is an arithmetic number, because the mean of its divisors is an integer number (481320987).

Almost surely, 2^2750405620 is an apocalyptic number.

2750405620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2750405620 is an abundant number, since it is smaller than the sum of its proper divisors (3025446224).

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

2750405620 is a wasteful number, since it uses less digits than its factorization.

2750405620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137520290 (or 137520288 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 2750405620 is about 52444.3097008627. The cubic root of 2750405620 is about 1401.0885445591.

The spelling of 2750405620 in words is "two billion, seven hundred fifty million, four hundred five thousand, six hundred twenty".