1942815 has 16 divisors (see below), whose sum is σ = 3552768. Its totient is φ = 888096.

The previous prime is 1942793. The next prime is 1942841. The reversal of 1942815 is 5182491.

1942815 = 366² + 367² + ... + 379².

It is a happy number.

It is not a de Polignac number, because 1942815 - 2⁶ = 1942751 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9147 + ... + 9356.

It is an arithmetic number, because the mean of its divisors is an integer number (222048).

2^1942815 is an apocalyptic number.

1942815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1942815 is a deficient number, since it is larger than the sum of its proper divisors (1609953).

1942815 is a wasteful number, since it uses less digits than its factorization.

1942815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18518.

The product of its digits is 2880, while the sum is 30.

The square root of 1942815 is about 1393.8489875162. The cubic root of 1942815 is about 124.7796651821.

The spelling of 1942815 in words is "one million, nine hundred forty-two thousand, eight hundred fifteen".