1942397424 has 240 divisors, whose sum is σ = 6402206304. Its totient is φ = 543129600.

The previous prime is 1942397423. The next prime is 1942397437. The reversal of 1942397424 is 4247932491.

1942397424 is a `hidden beast` number, since 194 + 2 + 39 + 7 + 424 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1942397424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1942397423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1426504 + ... + 1427864.

Almost surely, 2^1942397424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1942397424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3201103152).

1942397424 is an abundant number, since it is smaller than the sum of its proper divisors (4459808880).

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

1942397424 is a wasteful number, since it uses less digits than its factorization.

1942397424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456 (or 1447 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 1942397424 is about 44072.6380422139. The cubic root of 1942397424 is about 1247.7072476538.

The spelling of 1942397424 in words is "one billion, nine hundred forty-two million, three hundred ninety-seven thousand, four hundred twenty-four".