1020947760 has 160 divisors (see below), whose sum is σ = 4019028480. Its totient is φ = 233356032.

The previous prime is 1020947749. The next prime is 1020947761. The reversal of 1020947760 is 677490201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020947761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18642 + ... + 48881.

It is an arithmetic number, because the mean of its divisors is an integer number (25118928).

Almost surely, 2^1020947760 is an apocalyptic number.

1020947760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020947760 is an abundant number, since it is smaller than the sum of its proper divisors (2998080720).

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

1020947760 is a wasteful number, since it uses less digits than its factorization.

1020947760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67552 (or 67540 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 1020947760 is about 31952.2731585720. The cubic root of 1020947760 is about 1006.9343897569.

The spelling of 1020947760 in words is "one billion, twenty million, nine hundred forty-seven thousand, seven hundred sixty".