1842440388 has 24 divisors (see below), whose sum is σ = 4300517760. Its totient is φ = 613933920.

The previous prime is 1842440381. The next prime is 1842440389. The reversal of 1842440388 is 8830442481.

It is not an unprimeable number, because it can be changed into a prime (1842440381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11653 + ... + 61811.

It is an arithmetic number, because the mean of its divisors is an integer number (179188240).

Almost surely, 2^1842440388 is an apocalyptic number.

It is an amenable number.

1842440388 is an abundant number, since it is smaller than the sum of its proper divisors (2458077372).

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

1842440388 is a wasteful number, since it uses less digits than its factorization.

1842440388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53227 (or 53225 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 42.

The square root of 1842440388 is about 42923.6576726635. The cubic root of 1842440388 is about 1225.9266375986.

The spelling of 1842440388 in words is "one billion, eight hundred forty-two million, four hundred forty thousand, three hundred eighty-eight".