1204780 has 24 divisors (see below), whose sum is σ = 2575440. Its totient is φ = 473280.

The previous prime is 1204741. The next prime is 1204781. The reversal of 1204780 is 874021.

It is not an unprimeable number, because it can be changed into a prime (1204781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670 + ... + 1690.

It is an arithmetic number, because the mean of its divisors is an integer number (107310).

2^1204780 is an apocalyptic number.

1204780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204780 is an abundant number, since it is smaller than the sum of its proper divisors (1370660).

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

1204780 is a wasteful number, since it uses less digits than its factorization.

1204780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1204780 is about 1097.6247081767. The cubic root of 1204780 is about 106.4067674291.

It can be divided in two parts, 120 and 4780, that added together give a square (4900 = 70²).

The spelling of 1204780 in words is "one million, two hundred four thousand, seven hundred eighty".