1942237440 has 720 divisors, whose sum is σ = 8226985536. Its totient is φ = 431308800.

The previous prime is 1942237397. The next prime is 1942237457. The reversal of 1942237440 is 447322491.

1942237440 is a `hidden beast` number, since 194 + 2 + 23 + 7 + 440 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1942237395 and 1942237404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 14826175 + ... + 14826305.

Almost surely, 2^1942237440 is an apocalyptic number.

1942237440 is a gapful number since it is divisible by the number (10) 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 1942237440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4113492768).

1942237440 is an abundant number, since it is smaller than the sum of its proper divisors (6284748096).

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

1942237440 is a wasteful number, since it uses less digits than its factorization.

1942237440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 1942237440 is about 44070.8230011648. The cubic root of 1942237440 is about 1247.6729912457.

The spelling of 1942237440 in words is "one billion, nine hundred forty-two million, two hundred thirty-seven thousand, four hundred forty".