1242233550 has 96 divisors (see below), whose sum is σ = 3533583360. Its totient is φ = 320565600.

The previous prime is 1242233501. The next prime is 1242233591. The reversal of 1242233550 is 553322421.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27009 + ... + 56691.

It is an arithmetic number, because the mean of its divisors is an integer number (36808160).

Almost surely, 2^1242233550 is an apocalyptic number.

1242233550 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 1242233550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1766791680).

1242233550 is an abundant number, since it is smaller than the sum of its proper divisors (2291349810).

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

1242233550 is a wasteful number, since it uses less digits than its factorization.

1242233550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29735 (or 29724 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1242233550 is about 35245.3337337015. Note that the first 3 decimals coincide. The cubic root of 1242233550 is about 1074.9817339604.

Adding to 1242233550 its reverse (553322421), we get a palindrome (1795555971).

The spelling of 1242233550 in words is "one billion, two hundred forty-two million, two hundred thirty-three thousand, five hundred fifty".