1045542222 has 64 divisors (see below), whose sum is σ = 2459808000. Its totient is φ = 328269024.

The previous prime is 1045542221. The next prime is 1045542247. The reversal of 1045542222 is 2222455401.

1045542222 is a `hidden beast` number, since 104 + 554 + 2 + 2 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045542221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180808 + ... + 186500.

It is an arithmetic number, because the mean of its divisors is an integer number (38434500).

Almost surely, 2^1045542222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045542222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1229904000).

1045542222 is an abundant number, since it is smaller than the sum of its proper divisors (1414265778).

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

1045542222 is a wasteful number, since it uses less digits than its factorization.

1045542222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5902 (or 5896 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 1045542222 is about 32334.8453220361. The cubic root of 1045542222 is about 1014.9559452515.

Adding to 1045542222 its reverse (2222455401), we get a palindrome (3267997623).

The spelling of 1045542222 in words is "one billion, forty-five million, five hundred forty-two thousand, two hundred twenty-two".