1745394222 has 64 divisors (see below), whose sum is σ = 4124090880. Its totient is φ = 485481600.

The previous prime is 1745394197. The next prime is 1745394239. The reversal of 1745394222 is 2224935471.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149679 + ... + 160917.

It is an arithmetic number, because the mean of its divisors is an integer number (64438920).

Almost surely, 2^1745394222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1745394222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2062045440).

1745394222 is an abundant number, since it is smaller than the sum of its proper divisors (2378696658).

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

1745394222 is a wasteful number, since it uses less digits than its factorization.

1745394222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11449.

The product of its digits is 120960, while the sum is 39.

The square root of 1745394222 is about 41777.9154817471. The cubic root of 1745394222 is about 1204.0130051428.

The spelling of 1745394222 in words is "one billion, seven hundred forty-five million, three hundred ninety-four thousand, two hundred twenty-two".