2740625820 has 48 divisors (see below), whose sum is σ = 8526393120. Its totient is φ = 730833408.

The previous prime is 2740625807. The next prime is 2740625827. The reversal of 2740625820 is 285260472.

2740625820 is a `hidden beast` number, since 2 + 7 + 4 + 0 + 625 + 8 + 20 = 666.

It is a super-2 number, since 2×2740625820² = 15022059770501344800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2740625827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2537077 + ... + 2538156.

It is an arithmetic number, because the mean of its divisors is an integer number (177633190).

Almost surely, 2^2740625820 is an apocalyptic number.

2740625820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2740625820 is an abundant number, since it is smaller than the sum of its proper divisors (5785767300).

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

2740625820 is a wasteful number, since it uses less digits than its factorization.

2740625820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075251 (or 5075243 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 2740625820 is about 52350.9868101834. The cubic root of 2740625820 is about 1399.4259244942.

The spelling of 2740625820 in words is "two billion, seven hundred forty million, six hundred twenty-five thousand, eight hundred twenty".