1224135450 has 48 divisors (see below), whose sum is σ = 3373176960. Its totient is φ = 326435760.

The previous prime is 1224135449. The next prime is 1224135457. The reversal of 1224135450 is 545314221.

1224135450 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1224135457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 452034 + ... + 454733.

It is an arithmetic number, because the mean of its divisors is an integer number (70274520).

Almost surely, 2^1224135450 is an apocalyptic number.

1224135450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1224135450 is an abundant number, since it is smaller than the sum of its proper divisors (2149041510).

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

1224135450 is a wasteful number, since it uses less digits than its factorization.

1224135450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906788 (or 906777 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1224135450 is about 34987.6471058001. The cubic root of 1224135450 is about 1069.7357049506.

Adding to 1224135450 its reverse (545314221), we get a palindrome (1769449671).

The spelling of 1224135450 in words is "one billion, two hundred twenty-four million, one hundred thirty-five thousand, four hundred fifty".