2020129990 has 16 divisors (see below), whose sum is σ = 3659397552. Its totient is φ = 802904544.

The previous prime is 2020129963. The next prime is 2020130011. The reversal of 2020129990 is 999210202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641784 + ... + 644923.

It is an arithmetic number, because the mean of its divisors is an integer number (228712347).

Almost surely, 2^2020129990 is an apocalyptic number.

2020129990 is a deficient number, since it is larger than the sum of its proper divisors (1639267562).

2020129990 is a wasteful number, since it uses less digits than its factorization.

2020129990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286871.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 2020129990 is about 44945.8562049940. The cubic root of 2020129990 is about 1264.1339799997.

The spelling of 2020129990 in words is "two billion, twenty million, one hundred twenty-nine thousand, nine hundred ninety".