1224331887 has 32 divisors (see below), whose sum is σ = 1737031680. Its totient is φ = 765711360.

The previous prime is 1224331817. The next prime is 1224332033. The reversal of 1224331887 is 7881334221.

It is not a de Polignac number, because 1224331887 - 2¹² = 1224327791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224331807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1317439 + ... + 1318367.

It is an arithmetic number, because the mean of its divisors is an integer number (54282240).

Almost surely, 2^1224331887 is an apocalyptic number.

1224331887 is a deficient number, since it is larger than the sum of its proper divisors (512699793).

1224331887 is a wasteful number, since it uses less digits than its factorization.

1224331887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383.

The product of its digits is 64512, while the sum is 39.

The square root of 1224331887 is about 34990.4542268316. The cubic root of 1224331887 is about 1069.7929220485.

The spelling of 1224331887 in words is "one billion, two hundred twenty-four million, three hundred thirty-one thousand, eight hundred eighty-seven".