1946089728 has 216 divisors, whose sum is σ = 6321159936. Its totient is φ = 570470400.

The previous prime is 1946089727. The next prime is 1946089751. The reversal of 1946089728 is 8279806491.

1946089728 is a `hidden beast` number, since 1 + 9 + 4 + 608 + 9 + 7 + 28 = 666.

It is a super-2 number, since 2×1946089728² = 7574530458854227968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1946089727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 784426 + ... + 786902.

Almost surely, 2^1946089728 is an apocalyptic number.

1946089728 is a gapful number since it is divisible by the number (18) 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 1946089728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3160579968).

1946089728 is an abundant number, since it is smaller than the sum of its proper divisors (4375070208).

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

1946089728 is a wasteful number, since it uses less digits than its factorization.

1946089728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541 (or 2524 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 1946089728 is about 44114.5070016656. The cubic root of 1946089728 is about 1248.4973362986.

The spelling of 1946089728 in words is "one billion, nine hundred forty-six million, eighty-nine thousand, seven hundred twenty-eight".