1840722342 has 8 divisors (see below), whose sum is σ = 3681444696. Its totient is φ = 613574112.

The previous prime is 1840722341. The next prime is 1840722353. The reversal of 1840722342 is 2432270481.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1840722342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1840722341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153393523 + ... + 153393534.

It is an arithmetic number, because the mean of its divisors is an integer number (460180587).

Almost surely, 2^1840722342 is an apocalyptic number.

1840722342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1840722342 is a wasteful number, since it uses less digits than its factorization.

1840722342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306787062.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 1840722342 is about 42903.6401952095. The cubic root of 1840722342 is about 1225.5454668111.

The spelling of 1840722342 in words is "one billion, eight hundred forty million, seven hundred twenty-two thousand, three hundred forty-two".