1220494 has 16 divisors (see below), whose sum is σ = 2067120. Its totient is φ = 535360.

The previous prime is 1220491. The next prime is 1220497. The reversal of 1220494 is 4940221.

It is an interprime number because it is at equal distance from previous prime (1220491) and next prime (1220497).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220491) 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, 319 + ... + 1594.

It is an arithmetic number, because the mean of its divisors is an integer number (129195).

2^1220494 is an apocalyptic number.

1220494 is a deficient number, since it is larger than the sum of its proper divisors (846626).

1220494 is a wasteful number, since it uses less digits than its factorization.

1220494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1220494 is about 1104.7597023788. The cubic root of 1220494 is about 106.8673933006.

The spelling of 1220494 in words is "one million, two hundred twenty thousand, four hundred ninety-four".