2730907990 has 32 divisors (see below), whose sum is σ = 5136618240. Its totient is φ = 1043390304.

The previous prime is 2730907979. The next prime is 2730907997. The reversal of 2730907990 is 997090372.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 2730907990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2730907997) 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, 161937 + ... + 178003.

It is an arithmetic number, because the mean of its divisors is an integer number (160519320).

Almost surely, 2^2730907990 is an apocalyptic number.

2730907990 is a deficient number, since it is larger than the sum of its proper divisors (2405710250).

2730907990 is a wasteful number, since it uses less digits than its factorization.

2730907990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16836.

The product of its (nonzero) digits is 214326, while the sum is 46.

The square root of 2730907990 is about 52258.0901870706. The cubic root of 2730907990 is about 1397.7699172382.

The spelling of 2730907990 in words is "two billion, seven hundred thirty million, nine hundred seven thousand, nine hundred ninety".