1220476 has 6 divisors (see below), whose sum is σ = 2135840. Its totient is φ = 610236.

The previous prime is 1220437. The next prime is 1220489. The reversal of 1220476 is 6740221.

1220476 = T₄₄₅ + T₄₄₆ + ... + T₄₅₆.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152556 + ... + 152563.

2^1220476 is an apocalyptic number.

It is an amenable number.

1220476 is a deficient number, since it is larger than the sum of its proper divisors (915364).

1220476 is a wasteful number, since it uses less digits than its factorization.

1220476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305123 (or 305121 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1220476 is about 1104.7515557808. The cubic root of 1220476 is about 106.8668679334.

Adding to 1220476 its reverse (6740221), we get a palindrome (7960697).

The spelling of 1220476 in words is "one million, two hundred twenty thousand, four hundred seventy-six".