1044215550 has 120 divisors (see below), whose sum is σ = 3315944016. Its totient is φ = 238671360.

The previous prime is 1044215537. The next prime is 1044215567. The reversal of 1044215550 is 555124401.

1044215550 is a `hidden beast` number, since 104 + 4 + 2 + 1 + 5 + 550 = 666.

It is a super-2 number, since 2×1044215550² = 2180772229723605000, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 9934 + ... + 46766.

Almost surely, 2^1044215550 is an apocalyptic number.

1044215550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1044215550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1657972008).

1044215550 is an abundant number, since it is smaller than the sum of its proper divisors (2271728466).

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

1044215550 is a wasteful number, since it uses less digits than its factorization.

1044215550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36864 (or 36850 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1044215550 is about 32314.3242231677. The cubic root of 1044215550 is about 1014.5264763659.

Adding to 1044215550 its reverse (555124401), we get a palindrome (1599339951).

The spelling of 1044215550 in words is "one billion, forty-four million, two hundred fifteen thousand, five hundred fifty".