1020895956 has 36 divisors (see below), whose sum is σ = 2586286612. Its totient is φ = 339548544.

The previous prime is 1020895919. The next prime is 1020895987. The reversal of 1020895956 is 6595980201.

It can be written as a sum of positive squares in 2 ways, for example, as 638067600 + 382828356 = 25260^2 + 19566^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14575 + ... + 47478.

Almost surely, 2^1020895956 is an apocalyptic number.

It is an amenable number.

1020895956 is an abundant number, since it is smaller than the sum of its proper divisors (1565390656).

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

1020895956 is a wasteful number, since it uses less digits than its factorization.

1020895956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62520 (or 62515 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The square root of 1020895956 is about 31951.4625017385. The cubic root of 1020895956 is about 1006.9173584867.

The spelling of 1020895956 in words is "one billion, twenty million, eight hundred ninety-five thousand, nine hundred fifty-six".