1084642650 has 384 divisors, whose sum is σ = 3758092800. Its totient is φ = 226748160.

The previous prime is 1084642649. The next prime is 1084642673. The reversal of 1084642650 is 562464801.

1084642650 is a `hidden beast` number, since 1 + 0 + 8 + 4 + 642 + 6 + 5 + 0 = 666.

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 191 ways as a sum of consecutive naturals, for example, 9950796 + ... + 9950904.

It is an arithmetic number, because the mean of its divisors is an integer number (9786700).

Almost surely, 2^1084642650 is an apocalyptic number.

1084642650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1084642650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1879046400).

1084642650 is an abundant number, since it is smaller than the sum of its proper divisors (2673450150).

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

1084642650 is a wasteful number, since it uses less digits than its factorization.

1084642650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 1084642650 is about 32933.9133720850. The cubic root of 1084642650 is about 1027.4536182377.

The spelling of 1084642650 in words is "one billion, eighty-four million, six hundred forty-two thousand, six hundred fifty".