2042818 has 8 divisors (see below), whose sum is σ = 3169980. Its totient is φ = 986160.

The previous prime is 2042813. The next prime is 2042819. The reversal of 2042818 is 8182402.

It can be written as a sum of positive squares in 2 ways, for example, as 1896129 + 146689 = 1377^2 + 383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2042818² = 8346210762248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2042792 and 2042801.

It is not an unprimeable number, because it can be changed into a prime (2042813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17553 + ... + 17668.

2^2042818 is an apocalyptic number.

2042818 is a deficient number, since it is larger than the sum of its proper divisors (1127162).

2042818 is a wasteful number, since it uses less digits than its factorization.

2042818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35252.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 2042818 is about 1429.2718425828. The cubic root of 2042818 is about 126.8848854601.

The spelling of 2042818 in words is "two million, forty-two thousand, eight hundred eighteen".