1942639512 has 96 divisors (see below), whose sum is σ = 5358091200. Its totient is φ = 586491840.

The previous prime is 1942639511. The next prime is 1942639541. The reversal of 1942639512 is 2159362491.

1942639512 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1942639511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 890439 + ... + 892617.

It is an arithmetic number, because the mean of its divisors is an integer number (55813450).

Almost surely, 2^1942639512 is an apocalyptic number.

1942639512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1942639512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2679045600).

1942639512 is an abundant number, since it is smaller than the sum of its proper divisors (3415451688).

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

1942639512 is a wasteful number, since it uses less digits than its factorization.

1942639512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2517 (or 2502 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 1942639512 is about 44075.3844226003. The cubic root of 1942639512 is about 1247.7590809194.

The spelling of 1942639512 in words is "one billion, nine hundred forty-two million, six hundred thirty-nine thousand, five hundred twelve".