1229790 has 16 divisors (see below), whose sum is σ = 2951568. Its totient is φ = 327936.

The previous prime is 1229783. The next prime is 1229807. The reversal of 1229790 is 979221.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 40993 = 1229790 / (1 + 2 + 2 + 9 + 7 + 9 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20467 + ... + 20526.

It is an arithmetic number, because the mean of its divisors is an integer number (184473).

2^1229790 is an apocalyptic number.

1229790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1229790 is an abundant number, since it is smaller than the sum of its proper divisors (1721778).

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

1229790 is a wasteful number, since it uses less digits than its factorization.

1229790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41003.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 1229790 is about 1108.9589712879. The cubic root of 1229790 is about 107.1380289888.

The spelling of 1229790 in words is "one million, two hundred twenty-nine thousand, seven hundred ninety".