1045722258 has 128 divisors (see below), whose sum is σ = 2826109440. Its totient is φ = 279797760.

The previous prime is 1045722257. The next prime is 1045722269. The reversal of 1045722258 is 8522275401.

It is a happy number.

1045722258 is a `hidden beast` number, since 10 + 4 + 572 + 22 + 58 = 666.

1045722258 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1045722253) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2268148 + ... + 2268608.

It is an arithmetic number, because the mean of its divisors is an integer number (22078980).

Almost surely, 2^1045722258 is an apocalyptic number.

1045722258 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045722258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1413054720).

1045722258 is an abundant number, since it is smaller than the sum of its proper divisors (1780387182).

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

1045722258 is a wasteful number, since it uses less digits than its factorization.

1045722258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 843 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 1045722258 is about 32337.6291338744. The cubic root of 1045722258 is about 1015.0141983179.

Adding to 1045722258 its reverse (8522275401), we get a palindrome (9567997659).

The spelling of 1045722258 in words is "one billion, forty-five million, seven hundred twenty-two thousand, two hundred fifty-eight".