1224372249 has 24 divisors (see below), whose sum is σ = 1932982272. Its totient is φ = 743448960.

The previous prime is 1224372221. The next prime is 1224372269. The reversal of 1224372249 is 9422734221.

It is a happy number.

It is not a de Polignac number, because 1224372249 - 2¹⁵ = 1224339481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1224372269) 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, 124329 + ... + 133814.

It is an arithmetic number, because the mean of its divisors is an integer number (80540928).

Almost surely, 2^1224372249 is an apocalyptic number.

It is an amenable number.

1224372249 is a deficient number, since it is larger than the sum of its proper divisors (708610023).

1224372249 is a wasteful number, since it uses less digits than its factorization.

1224372249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258197 (or 258194 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 1224372249 is about 34991.0309793810. The cubic root of 1224372249 is about 1069.8046777137.

The spelling of 1224372249 in words is "one billion, two hundred twenty-four million, three hundred seventy-two thousand, two hundred forty-nine".