1043213550 has 72 divisors (see below), whose sum is σ = 2673688248. Its totient is φ = 269179200.

The previous prime is 1043213527. The next prime is 1043213609. The reversal of 1043213550 is 553123401.

It is a self number, because there is not a number n which added to its sum of digits gives 1043213550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 140532 + ... + 147768.

It is an arithmetic number, because the mean of its divisors is an integer number (37134559).

Almost surely, 2^1043213550 is an apocalyptic number.

1043213550 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 1043213550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1336844124).

1043213550 is an abundant number, since it is smaller than the sum of its proper divisors (1630474698).

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

1043213550 is a wasteful number, since it uses less digits than its factorization.

1043213550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7314 (or 7278 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1043213550 is about 32298.8165417868. The cubic root of 1043213550 is about 1014.2018687835.

Adding to 1043213550 its reverse (553123401), we get a palindrome (1596336951).

The spelling of 1043213550 in words is "one billion, forty-three million, two hundred thirteen thousand, five hundred fifty".