1220739704 has 8 divisors (see below), whose sum is σ = 2288886960. Its totient is φ = 610369848.

The previous prime is 1220739703. The next prime is 1220739739. The reversal of 1220739704 is 4079370221.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220739703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76296224 + ... + 76296239.

It is an arithmetic number, because the mean of its divisors is an integer number (286110870).

Almost surely, 2^1220739704 is an apocalyptic number.

It is an amenable number.

1220739704 is a deficient number, since it is larger than the sum of its proper divisors (1068147256).

1220739704 is a wasteful number, since it uses less digits than its factorization.

1220739704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152592469 (or 152592465 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 1220739704 is about 34939.0856205482. The cubic root of 1220739704 is about 1068.7456416315.

The spelling of 1220739704 in words is "one billion, two hundred twenty million, seven hundred thirty-nine thousand, seven hundred four".