2950000021 has 32 divisors (see below), whose sum is σ = 3428766720. Its totient is φ = 2519424000.

The previous prime is 2949999977. The next prime is 2950000037. The reversal of 2950000021 is 1200000592.

It is a 5-Lehmer number, since φ(2950000021) divides (2950000021-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 2950000021 - 2¹⁷ = 2949868949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2950000051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1009855 + ... + 1012771.

It is an arithmetic number, because the mean of its divisors is an integer number (107148960).

Almost surely, 2^2950000021 is an apocalyptic number.

It is an amenable number.

2950000021 is a deficient number, since it is larger than the sum of its proper divisors (478766699).

2950000021 is a wasteful number, since it uses less digits than its factorization.

2950000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 2950000021 is about 54313.9026493217. The cubic root of 2950000021 is about 1434.1921454203.

The spelling of 2950000021 in words is "two billion, nine hundred fifty million, twenty-one", and thus it is an aban number.