1780242 has 16 divisors (see below), whose sum is σ = 3576960. Its totient is φ = 590672.

The previous prime is 1780231. The next prime is 1780253. The reversal of 1780242 is 2420871.

It is an interprime number because it is at equal distance from previous prime (1780231) and next prime (1780253).

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, 1063 + ... + 2165.

It is an arithmetic number, because the mean of its divisors is an integer number (223560).

2^1780242 is an apocalyptic number.

1780242 is an abundant number, since it is smaller than the sum of its proper divisors (1796718).

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

1780242 is a wasteful number, since it uses less digits than its factorization.

1780242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 1780242 is about 1334.2570966647. The cubic root of 1780242 is about 121.1973193756.

The spelling of 1780242 in words is "one million, seven hundred eighty thousand, two hundred forty-two".