1220376 has 16 divisors (see below), whose sum is σ = 3051000. Its totient is φ = 406784.

The previous prime is 1220369. The next prime is 1220393. The reversal of 1220376 is 6730221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25401 + ... + 25448.

2^1220376 is an apocalyptic number.

It is an amenable number.

1220376 is an abundant number, since it is smaller than the sum of its proper divisors (1830624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220376 is a wasteful number, since it uses less digits than its factorization.

1220376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50858 (or 50854 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 1220376 is about 1104.7062958090. The cubic root of 1220376 is about 106.8639491327.

Adding to 1220376 its reverse (6730221), we get a palindrome (7950597).

It can be divided in two parts, 1220 and 376, that added together give a triangular number (1596 = T₅₆).

The spelling of 1220376 in words is "one million, two hundred twenty thousand, three hundred seventy-six".