1204090 has 12 divisors (see below), whose sum is σ = 2173626. Its totient is φ = 480248.

The previous prime is 1204037. The next prime is 1204097. The reversal of 1204090 is 904021.

It can be written as a sum of positive squares in only one way, i.e., 1083681 + 120409 = 1041^2 + 347^2 .

It is not an unprimeable number, because it can be changed into a prime (1204097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3297 + ... + 3643.

2^1204090 is an apocalyptic number.

1204090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1204090 is a deficient number, since it is larger than the sum of its proper divisors (969536).

1204090 is an frugal number, since it uses more digits than its factorization.

1204090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1204090 is about 1097.3103480784. The cubic root of 1204090 is about 106.3864498357.

The spelling of 1204090 in words is "one million, two hundred four thousand, ninety".