1220996624 has 20 divisors (see below), whose sum is σ = 2369798844. Its totient is φ = 609435648.

The previous prime is 1220996603. The next prime is 1220996629. The reversal of 1220996624 is 4266990221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1188870400 + 32126224 = 34480^2 + 5668^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1220996629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56897 + ... + 75360.

Almost surely, 2^1220996624 is an apocalyptic number.

It is an amenable number.

1220996624 is a deficient number, since it is larger than the sum of its proper divisors (1148802220).

1220996624 is a wasteful number, since it uses less digits than its factorization.

1220996624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132842 (or 132836 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 1220996624 is about 34942.7621117736. The cubic root of 1220996624 is about 1068.8206133525.

The spelling of 1220996624 in words is "one billion, two hundred twenty million, nine hundred ninety-six thousand, six hundred twenty-four".