1956811028 has 12 divisors (see below), whose sum is σ = 3432961812. Its totient is φ = 975964800.

The previous prime is 1956811013. The next prime is 1956811079. The reversal of 1956811028 is 8201186591.

It can be written as a sum of positive squares in 2 ways, for example, as 1617809284 + 339001744 = 40222^2 + 18412^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608375 + ... + 611582.

It is an arithmetic number, because the mean of its divisors is an integer number (286080151).

Almost surely, 2^1956811028 is an apocalyptic number.

It is an amenable number.

1956811028 is a deficient number, since it is larger than the sum of its proper divisors (1476150784).

1956811028 is a wasteful number, since it uses less digits than its factorization.

1956811028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220362 (or 1220360 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 41.

The square root of 1956811028 is about 44235.8568132234. The cubic root of 1956811028 is about 1250.7858584776.

The spelling of 1956811028 in words is "one billion, nine hundred fifty-six million, eight hundred eleven thousand, twenty-eight".