1550323228 has 12 divisors (see below), whose sum is σ = 2872657872. Its totient is φ = 729563840.

The previous prime is 1550323207. The next prime is 1550323249. The reversal of 1550323228 is 8223230551.

It is an interprime number because it is at equal distance from previous prime (1550323207) and next prime (1550323249).

It is a super-2 number, since 2×1550323228² = 4807004222552679968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1550323228.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11399368 + ... + 11399503.

It is an arithmetic number, because the mean of its divisors is an integer number (239388156).

Almost surely, 2^1550323228 is an apocalyptic number.

It is an amenable number.

1550323228 is a deficient number, since it is larger than the sum of its proper divisors (1322334644).

1550323228 is a wasteful number, since it uses less digits than its factorization.

1550323228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22798892 (or 22798890 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 1550323228 is about 39374.1441557782. The cubic root of 1550323228 is about 1157.3749668320.

Adding to 1550323228 its reverse (8223230551), we get a palindrome (9773553779).

It can be divided in two parts, 1550323 and 228, that added together give a palindrome (1550551).

The spelling of 1550323228 in words is "one billion, five hundred fifty million, three hundred twenty-three thousand, two hundred twenty-eight".