1550422244 has 48 divisors (see below), whose sum is σ = 3216998400. Its totient is φ = 639709056.

The previous prime is 1550422217. The next prime is 1550422261. The reversal of 1550422244 is 4422240551.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300317 + ... + 305435.

It is an arithmetic number, because the mean of its divisors is an integer number (67020800).

Almost surely, 2^1550422244 is an apocalyptic number.

1550422244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1550422244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1608499200).

1550422244 is an abundant number, since it is smaller than the sum of its proper divisors (1666576156).

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

1550422244 is a wasteful number, since it uses less digits than its factorization.

1550422244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532 (or 5530 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 1550422244 is about 39375.4015090640. The cubic root of 1550422244 is about 1157.3996060380.

Adding to 1550422244 its reverse (4422240551), we get a palindrome (5972662795).

The spelling of 1550422244 in words is "one billion, five hundred fifty million, four hundred twenty-two thousand, two hundred forty-four".