1942280988 has 24 divisors (see below), whose sum is σ = 4562006400. Its totient is φ = 643138800.

The previous prime is 1942280971. The next prime is 1942280993. The reversal of 1942280988 is 8890822491.

It is a happy number.

It is a super-2 number, since 2×1942280988² = 7544910872692512288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1942280988.

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 7 ways as a sum of consecutive naturals, for example, 534138 + ... + 537761.

It is an arithmetic number, because the mean of its divisors is an integer number (190083600).

Almost surely, 2^1942280988 is an apocalyptic number.

It is an amenable number.

1942280988 is an abundant number, since it is smaller than the sum of its proper divisors (2619725412).

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

1942280988 is a wasteful number, since it uses less digits than its factorization.

1942280988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072057 (or 1072055 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 51.

The square root of 1942280988 is about 44071.3170667726. The cubic root of 1942280988 is about 1247.6823161024.

The spelling of 1942280988 in words is "one billion, nine hundred forty-two million, two hundred eighty thousand, nine hundred eighty-eight".