2720019990 has 64 divisors (see below), whose sum is σ = 6589896192. Its totient is φ = 718502400.

The previous prime is 2720019979. The next prime is 2720020001. The reversal of 2720019990 is 999100272.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2720019979) and next prime (2720020001).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1524639 + ... + 1526421.

It is an arithmetic number, because the mean of its divisors is an integer number (102967128).

Almost surely, 2^2720019990 is an apocalyptic number.

2720019990 is an abundant number, since it is smaller than the sum of its proper divisors (3869876202).

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

2720019990 is a wasteful number, since it uses less digits than its factorization.

2720019990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 2720019990 is about 52153.8108866457. The cubic root of 2720019990 is about 1395.9098290020.

The spelling of 2720019990 in words is "two billion, seven hundred twenty million, nineteen thousand, nine hundred ninety".