1219964 has 12 divisors (see below), whose sum is σ = 2192904. Its totient is φ = 593424.

The previous prime is 1219963. The next prime is 1219991. The reversal of 1219964 is 4699121.

1219964 = 387² + 388² + ... + 394².

It is a super-2 number, since 2×1219964² = 2976624322592, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1219964.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1219961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3974 + ... + 4269.

It is an arithmetic number, because the mean of its divisors is an integer number (182742).

2^1219964 is an apocalyptic number.

It is an amenable number.

1219964 is a deficient number, since it is larger than the sum of its proper divisors (972940).

1219964 is a wasteful number, since it uses less digits than its factorization.

1219964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8284 (or 8282 counting only the distinct ones).

The product of its digits is 3888, while the sum is 32.

The square root of 1219964 is about 1104.5198051642. The cubic root of 1219964 is about 106.8519219917.

The spelling of 1219964 in words is "one million, two hundred nineteen thousand, nine hundred sixty-four".