1941813 has 24 divisors (see below), whose sum is σ = 2978976. Its totient is φ = 1263600.

The previous prime is 1941799. The next prime is 1941827. The reversal of 1941813 is 3181491.

It is an interprime number because it is at equal distance from previous prime (1941799) and next prime (1941827).

It is not a de Polignac number, because 1941813 - 2⁸ = 1941557 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1941013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14758 + ... + 14888.

It is an arithmetic number, because the mean of its divisors is an integer number (124124).

2^1941813 is an apocalyptic number.

It is an amenable number.

1941813 is a deficient number, since it is larger than the sum of its proper divisors (1037163).

1941813 is an equidigital number, since it uses as much as digits as its factorization.

1941813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 195 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 1941813 is about 1393.4895048044. The cubic root of 1941813 is about 124.7582099354.

The spelling of 1941813 in words is "one million, nine hundred forty-one thousand, eight hundred thirteen".