2750405640 has 64 divisors (see below), whose sum is σ = 8256288960. Its totient is φ = 732990720.

The previous prime is 2750405633. The next prime is 2750405641. The reversal of 2750405640 is 465040572.

It is not an unprimeable number, because it can be changed into a prime (2750405641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219135 + ... + 231345.

It is an arithmetic number, because the mean of its divisors is an integer number (129004515).

Almost surely, 2^2750405640 is an apocalyptic number.

2750405640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2750405640 is an abundant number, since it is smaller than the sum of its proper divisors (5505883320).

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

2750405640 is a wasteful number, since it uses less digits than its factorization.

2750405640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14102 (or 14098 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 2750405640 is about 52444.3098915411. The cubic root of 2750405640 is about 1401.0885479551.

The spelling of 2750405640 in words is "two billion, seven hundred fifty million, four hundred five thousand, six hundred forty".