1224708746 has 4 divisors (see below), whose sum is σ = 1837063122. Its totient is φ = 612354372.

The previous prime is 1224708743. The next prime is 1224708791. The reversal of 1224708746 is 6478074221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6478074221 = 83 ⋅78049087.

It can be written as a sum of positive squares in only one way, i.e., 1104565225 + 120143521 = 33235^2 + 10961^2 .

It is not an unprimeable number, because it can be changed into a prime (1224708743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306177185 + ... + 306177188.

Almost surely, 2^1224708746 is an apocalyptic number.

1224708746 is a deficient number, since it is larger than the sum of its proper divisors (612354376).

1224708746 is an equidigital number, since it uses as much as digits as its factorization.

1224708746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612354375.

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 1224708746 is about 34995.8389812275. The cubic root of 1224708746 is about 1069.9026743514.

The spelling of 1224708746 in words is "one billion, two hundred twenty-four million, seven hundred eight thousand, seven hundred forty-six".