1864018722 has 16 divisors (see below), whose sum is σ = 3728489472. Its totient is φ = 621264240.

The previous prime is 1864018721. The next prime is 1864018729. The reversal of 1864018722 is 2278104681.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1864018721) 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, 60447 + ... + 85917.

It is an arithmetic number, because the mean of its divisors is an integer number (233030592).

Almost surely, 2^1864018722 is an apocalyptic number.

1864018722 is an abundant number, since it is smaller than the sum of its proper divisors (1864470750).

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

1864018722 is a wasteful number, since it uses less digits than its factorization.

1864018722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37673.

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 1864018722 is about 43174.2831092770. The cubic root of 1864018722 is about 1230.6940190652.

The spelling of 1864018722 in words is "one billion, eight hundred sixty-four million, eighteen thousand, seven hundred twenty-two".