1964128 has 12 divisors (see below), whose sum is σ = 3866940. Its totient is φ = 982048.

The previous prime is 1964119. The next prime is 1964143. The reversal of 1964128 is 8214691.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1964128.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30658 + ... + 30721.

It is an arithmetic number, because the mean of its divisors is an integer number (322245).

2^1964128 is an apocalyptic number.

It is an amenable number.

1964128 is a deficient number, since it is larger than the sum of its proper divisors (1902812).

1964128 is an equidigital number, since it uses as much as digits as its factorization.

1964128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61389 (or 61381 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 1964128 is about 1401.4735102741. The cubic root of 1964128 is about 125.2342912532.

The spelling of 1964128 in words is "one million, nine hundred sixty-four thousand, one hundred twenty-eight".