964636442 has 36 divisors (see below), whose sum is σ = 1850143050. Its totient is φ = 375827760.

The previous prime is 964636433. The next prime is 964636469. The reversal of 964636442 is 244636469.

It can be written as a sum of positive squares in only one way, i.e., 962922961 + 1713481 = 31031^2 + 1309^2 .

It is a junction number, because it is equal to n+sod(n) for n = 964636393 and 964636402.

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 17 ways as a sum of consecutive naturals, for example, 28817 + ... + 52532.

Almost surely, 2^964636442 is an apocalyptic number.

964636442 is a deficient number, since it is larger than the sum of its proper divisors (885506608).

964636442 is a wasteful number, since it uses less digits than its factorization.

964636442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81387 (or 81369 counting only the distinct ones).

The product of its digits is 746496, while the sum is 44.

The square root of 964636442 is about 31058.5969097125. The cubic root of 964636442 is about 988.0703978479.

The spelling of 964636442 in words is "nine hundred sixty-four million, six hundred thirty-six thousand, four hundred forty-two".