1071220624 has 20 divisors (see below), whose sum is σ = 2142442240. Its totient is φ = 518332320.

The previous prime is 1071220547. The next prime is 1071220637. The reversal of 1071220624 is 4260221701.

1071220624 is an admirable number.

It is a super-2 number, since 2×1071220624² = 2295027250565898752, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1079364 + ... + 1080355.

It is an arithmetic number, because the mean of its divisors is an integer number (107122112).

Almost surely, 2^1071220624 is an apocalyptic number.

It is an amenable number.

1071220624 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1071220624 is a wasteful number, since it uses less digits than its factorization.

1071220624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159758 (or 2159752 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1071220624 is about 32729.5069318192. The cubic root of 1071220624 is about 1023.1979039892.

The spelling of 1071220624 in words is "one billion, seventy-one million, two hundred twenty thousand, six hundred twenty-four".