1220499 has 12 divisors (see below), whose sum is σ = 2014896. Its totient is φ = 697392.

The previous prime is 1220497. The next prime is 1220507. The reversal of 1220499 is 9940221.

It is not a de Polignac number, because 1220499 - 2¹ = 1220497 is a prime.

1220499 is a lucky 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 11 ways as a sum of consecutive naturals, for example, 9624 + ... + 9749.

It is an arithmetic number, because the mean of its divisors is an integer number (167908).

2^1220499 is an apocalyptic number.

1220499 is a deficient number, since it is larger than the sum of its proper divisors (794397).

1220499 is a wasteful number, since it uses less digits than its factorization.

1220499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19386 (or 19383 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1220499 is about 1104.7619653120. The cubic root of 1220499 is about 106.8675392350.

The spelling of 1220499 in words is "one million, two hundred twenty thousand, four hundred ninety-nine".