1021770534 has 16 divisors (see below), whose sum is σ = 2045374272. Its totient is φ = 340284648.

The previous prime is 1021770493. The next prime is 1021770583. The reversal of 1021770534 is 4350771201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69084 + ... + 82559.

It is an arithmetic number, because the mean of its divisors is an integer number (127835892).

Almost surely, 2^1021770534 is an apocalyptic number.

1021770534 is an abundant number, since it is smaller than the sum of its proper divisors (1023603738).

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

1021770534 is a wasteful number, since it uses less digits than its factorization.

1021770534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152771.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 1021770534 is about 31965.1456120569. The cubic root of 1021770534 is about 1007.2048107038.

The spelling of 1021770534 in words is "one billion, twenty-one million, seven hundred seventy thousand, five hundred thirty-four".