1229660 has 12 divisors (see below), whose sum is σ = 2582328. Its totient is φ = 491856.

The previous prime is 1229647. The next prime is 1229663. The reversal of 1229660 is 669221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30722 + ... + 30761.

It is an arithmetic number, because the mean of its divisors is an integer number (215194).

2^1229660 is an apocalyptic number.

1229660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1229660 is an abundant number, since it is smaller than the sum of its proper divisors (1352668).

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

1229660 is a wasteful number, since it uses less digits than its factorization.

1229660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61492 (or 61490 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1229660 is about 1108.9003562088. The cubic root of 1229660 is about 107.1342537007.

The spelling of 1229660 in words is "one million, two hundred twenty-nine thousand, six hundred sixty".