2141720994 has 32 divisors (see below), whose sum is σ = 5053280256. Its totient is φ = 592180560.

The previous prime is 2141720993. The next prime is 2141721007. The reversal of 2141720994 is 4990271412.

It is a super-2 number, since 2×2141720994² = 9173937632280696072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2141720993) 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, 821172 + ... + 823775.

It is an arithmetic number, because the mean of its divisors is an integer number (157915008).

Almost surely, 2^2141720994 is an apocalyptic number.

2141720994 is an abundant number, since it is smaller than the sum of its proper divisors (2911559262).

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

2141720994 is a wasteful number, since it uses less digits than its factorization.

2141720994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644990.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 2141720994 is about 46278.7315513293. The cubic root of 2141720994 is about 1289.0040976381.

The spelling of 2141720994 in words is "two billion, one hundred forty-one million, seven hundred twenty thousand, nine hundred ninety-four".