1801316 has 12 divisors (see below), whose sum is σ = 3438960. Its totient is φ = 818760.

The previous prime is 1801309. The next prime is 1801339. The reversal of 1801316 is 6131081.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20426 + ... + 20513.

It is an arithmetic number, because the mean of its divisors is an integer number (286580).

2^1801316 is an apocalyptic number.

It is an amenable number.

1801316 is a deficient number, since it is larger than the sum of its proper divisors (1637644).

1801316 is a wasteful number, since it uses less digits than its factorization.

1801316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40954 (or 40952 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1801316 is about 1342.1311411334. The cubic root of 1801316 is about 121.6736777928.

Adding to 1801316 its reverse (6131081), we get a palindrome (7932397).

The spelling of 1801316 in words is "one million, eight hundred one thousand, three hundred sixteen".