1061369920 has 56 divisors (see below), whose sum is σ = 2721812184. Its totient is φ = 391888896.

The previous prime is 1061369893. The next prime is 1061370007. The reversal of 1061369920 is 299631601.

It can be written as a sum of positive squares in 4 ways, for example, as 33269824 + 1028100096 = 5768^2 + 32064^2 .

It is a super-2 number, since 2×1061369920² = 2253012214161612800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1061369920.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123409 + ... + 131728.

It is an arithmetic number, because the mean of its divisors is an integer number (48603789).

Almost surely, 2^1061369920 is an apocalyptic number.

1061369920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1061369920 is an abundant number, since it is smaller than the sum of its proper divisors (1660442264).

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

1061369920 is a wasteful number, since it uses less digits than its factorization.

1061369920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255167 (or 255157 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 1061369920 is about 32578.6727783684. The cubic root of 1061369920 is about 1020.0518748447.

The spelling of 1061369920 in words is "one billion, sixty-one million, three hundred sixty-nine thousand, nine hundred twenty".