1946905688 has 96 divisors (see below), whose sum is σ = 4783678560. Its totient is φ = 724838400.

The previous prime is 1946905687. The next prime is 1946905729. The reversal of 1946905688 is 8865096491.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1946905687) 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, 154838 + ... + 166938.

It is an arithmetic number, because the mean of its divisors is an integer number (49829985).

Almost surely, 2^1946905688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1946905688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2391839280).

1946905688 is an abundant number, since it is smaller than the sum of its proper divisors (2836772872).

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

1946905688 is a wasteful number, since it uses less digits than its factorization.

1946905688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12157 (or 12140 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 56.

The square root of 1946905688 is about 44123.7542373720. The cubic root of 1946905688 is about 1248.6718026533.

The spelling of 1946905688 in words is "one billion, nine hundred forty-six million, nine hundred five thousand, six hundred eighty-eight".