786378450 has 192 divisors, whose sum is σ = 2332600704. Its totient is φ = 172800000.

The previous prime is 786378449. The next prime is 786378473. The reversal of 786378450 is 54873687.

It is a self number, because there is not a number n which added to its sum of digits gives 786378450.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1308150 + ... + 1308750.

It is an arithmetic number, because the mean of its divisors is an integer number (12148962).

Almost surely, 2^786378450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 786378450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1166300352).

786378450 is an abundant number, since it is smaller than the sum of its proper divisors (1546222254).

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

786378450 is a wasteful number, since it uses less digits than its factorization.

786378450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 786378450 is about 28042.4401577324. The cubic root of 786378450 is about 923.0187738744.

The spelling of 786378450 in words is "seven hundred eighty-six million, three hundred seventy-eight thousand, four hundred fifty".