1029985748 has 24 divisors (see below), whose sum is σ = 1981830144. Its totient is φ = 464486400.

The previous prime is 1029985741. The next prime is 1029985787. The reversal of 1029985748 is 8475899201.

It is a self number, because there is not a number n which added to its sum of digits gives 1029985748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029985741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86573 + ... + 97748.

It is an arithmetic number, because the mean of its divisors is an integer number (82576256).

Almost surely, 2^1029985748 is an apocalyptic number.

It is an amenable number.

1029985748 is a deficient number, since it is larger than the sum of its proper divisors (951844396).

1029985748 is a wasteful number, since it uses less digits than its factorization.

1029985748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184463 (or 184461 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 53.

The square root of 1029985748 is about 32093.3910330460. The cubic root of 1029985748 is about 1009.8969760615.

The spelling of 1029985748 in words is "one billion, twenty-nine million, nine hundred eighty-five thousand, seven hundred forty-eight".