2019936942 has 24 divisors (see below), whose sum is σ = 4527446040. Its totient is φ = 650094480.

The previous prime is 2019936931. The next prime is 2019936959. The reversal of 2019936942 is 2496399102.

It is a happy number.

It is a super-2 number, since 2×2019936942² = 8160290499312622728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1934284 + ... + 1935327.

It is an arithmetic number, because the mean of its divisors is an integer number (188643585).

Almost surely, 2^2019936942 is an apocalyptic number.

2019936942 is an abundant number, since it is smaller than the sum of its proper divisors (2507509098).

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

2019936942 is a wasteful number, since it uses less digits than its factorization.

2019936942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3869648 (or 3869645 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 2019936942 is about 44943.7085919709. The cubic root of 2019936942 is about 1264.0937109227.

It can be divided in two parts, 2019 and 936942, that added together give a square (938961 = 969²).

The spelling of 2019936942 in words is "two billion, nineteen million, nine hundred thirty-six thousand, nine hundred forty-two".