1220948 has 6 divisors (see below), whose sum is σ = 2136666. Its totient is φ = 610472.

The previous prime is 1220927. The next prime is 1220953. The reversal of 1220948 is 8490221.

It can be written as a sum of positive squares in only one way, i.e., 1106704 + 114244 = 1052^2 + 338^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152615 + ... + 152622.

It is an arithmetic number, because the mean of its divisors is an integer number (356111).

2^1220948 is an apocalyptic number.

It is an amenable number.

1220948 is a deficient number, since it is larger than the sum of its proper divisors (915718).

1220948 is a wasteful number, since it uses less digits than its factorization.

1220948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305241 (or 305239 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1220948 is about 1104.9651578217. The cubic root of 1220948 is about 106.8806425210.

The spelling of 1220948 in words is "one million, two hundred twenty thousand, nine hundred forty-eight".