1224992493 has 12 divisors (see below), whose sum is σ = 1786613920. Its totient is φ = 808732296.

The previous prime is 1224992473. The next prime is 1224992501. The reversal of 1224992493 is 3942994221.

1224992493 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-1224992493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224992473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 659803 + ... + 661656.

Almost surely, 2^1224992493 is an apocalyptic number.

It is an amenable number.

1224992493 is a deficient number, since it is larger than the sum of its proper divisors (561621427).

1224992493 is a wasteful number, since it uses less digits than its factorization.

1224992493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321568 (or 1321565 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 1224992493 is about 34999.8927569786. The cubic root of 1224992493 is about 1069.9852948746.

The spelling of 1224992493 in words is "one billion, two hundred twenty-four million, nine hundred ninety-two thousand, four hundred ninety-three".