963640446 has 16 divisors (see below), whose sum is σ = 1930135824. Its totient is φ = 320737664.

The previous prime is 963640441. The next prime is 963640463. The reversal of 963640446 is 644046369.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 963640398 and 963640407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (963640441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114555 + ... + 122678.

It is an arithmetic number, because the mean of its divisors is an integer number (120633489).

Almost surely, 2^963640446 is an apocalyptic number.

963640446 is an abundant number, since it is smaller than the sum of its proper divisors (966495378).

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

963640446 is a wasteful number, since it uses less digits than its factorization.

963640446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237915.

The product of its (nonzero) digits is 373248, while the sum is 42.

The square root of 963640446 is about 31042.5586252164. The cubic root of 963640446 is about 987.7302168160.

The spelling of 963640446 in words is "nine hundred sixty-three million, six hundred forty thousand, four hundred forty-six".