1061854920 has 160 divisors (see below), whose sum is σ = 4078958400. Its totient is φ = 242704512.

The previous prime is 1061854903. The next prime is 1061854921. The reversal of 1061854920 is 294581601.

1061854920 is a `hidden beast` number, since 10 + 618 + 5 + 4 + 9 + 20 = 666.

It is a super-2 number, since 2×1061854920² = 2255071742256412800, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1061854921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 730 + ... + 46089.

It is an arithmetic number, because the mean of its divisors is an integer number (25493490).

Almost surely, 2^1061854920 is an apocalyptic number.

1061854920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1061854920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2039479200).

1061854920 is an abundant number, since it is smaller than the sum of its proper divisors (3017103480).

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

1061854920 is a wasteful number, since it uses less digits than its factorization.

1061854920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46849 (or 46836 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1061854920 is about 32586.1154481475. The cubic root of 1061854920 is about 1020.2072243332.

The spelling of 1061854920 in words is "one billion, sixty-one million, eight hundred fifty-four thousand, nine hundred twenty".