2072021870 has 16 divisors (see below), whose sum is σ = 3858248160. Its totient is φ = 800229024.

The previous prime is 2072021843. The next prime is 2072021911. The reversal of 2072021870 is 781202702.

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 3572162 + ... + 3572741.

It is an arithmetic number, because the mean of its divisors is an integer number (241140510).

Almost surely, 2^2072021870 is an apocalyptic number.

2072021870 is a deficient number, since it is larger than the sum of its proper divisors (1786226290).

2072021870 is a wasteful number, since it uses less digits than its factorization.

2072021870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144939.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 2072021870 is about 45519.4669344886. The cubic root of 2072021870 is about 1274.8667029685.

The spelling of 2072021870 in words is "two billion, seventy-two million, twenty-one thousand, eight hundred seventy".