1224140392 has 32 divisors (see below), whose sum is σ = 2336716800. Its totient is φ = 601099200.

The previous prime is 1224140381. The next prime is 1224140399. The reversal of 1224140392 is 2930414221.

It is a self number, because there is not a number n which added to its sum of digits gives 1224140392.

It is not an unprimeable number, because it can be changed into a prime (1224140399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115642 + ... + 125782.

It is an arithmetic number, because the mean of its divisors is an integer number (73022400).

Almost surely, 2^1224140392 is an apocalyptic number.

It is an amenable number.

1224140392 is a deficient number, since it is larger than the sum of its proper divisors (1112576408).

1224140392 is a wasteful number, since it uses less digits than its factorization.

1224140392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10417 (or 10413 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1224140392 is about 34987.7177306551. The cubic root of 1224140392 is about 1069.7371445045.

The spelling of 1224140392 in words is "one billion, two hundred twenty-four million, one hundred forty thousand, three hundred ninety-two".