1029720056 has 64 divisors (see below), whose sum is σ = 2118804480. Its totient is φ = 467043840.

The previous prime is 1029720037. The next prime is 1029720061. The reversal of 1029720056 is 6500279201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1968611 + ... + 1969133.

It is an arithmetic number, because the mean of its divisors is an integer number (33106320).

Almost surely, 2^1029720056 is an apocalyptic number.

It is an amenable number.

1029720056 is an abundant number, since it is smaller than the sum of its proper divisors (1089084424).

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

1029720056 is a wasteful number, since it uses less digits than its factorization.

1029720056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1029720056 is about 32089.2514091557. The cubic root of 1029720056 is about 1009.8101319399.

Adding to 1029720056 its reverse (6500279201), we get a palindrome (7529999257).

The spelling of 1029720056 in words is "one billion, twenty-nine million, seven hundred twenty thousand, fifty-six".