2730293820 has 72 divisors (see below), whose sum is σ = 8316388080. Its totient is φ = 725045760.

The previous prime is 2730293809. The next prime is 2730293831. The reversal of 2730293820 is 283920372.

2730293820 is a `hidden beast` number, since 273 + 0 + 2 + 9 + 382 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2730293809) and next prime (2730293831).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11911 + ... + 74849.

It is an arithmetic number, because the mean of its divisors is an integer number (115505390).

Almost surely, 2^2730293820 is an apocalyptic number.

2730293820 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 2730293820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4158194040).

2730293820 is an abundant number, since it is smaller than the sum of its proper divisors (5586094260).

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

2730293820 is a wasteful number, since it uses less digits than its factorization.

2730293820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63195 (or 63190 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 2730293820 is about 52252.2135416290. The cubic root of 2730293820 is about 1397.6651251426.

The spelling of 2730293820 in words is "two billion, seven hundred thirty million, two hundred ninety-three thousand, eight hundred twenty".