1816414406 has 4 divisors (see below), whose sum is σ = 2724621612. Its totient is φ = 908207202.

The previous prime is 1816414361. The next prime is 1816414409. The reversal of 1816414406 is 6044146181.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1816414406² = 6598722588648665672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1816414409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454103600 + ... + 454103603.

It is an arithmetic number, because the mean of its divisors is an integer number (681155403).

Almost surely, 2^1816414406 is an apocalyptic number.

1816414406 is a deficient number, since it is larger than the sum of its proper divisors (908207206).

1816414406 is an equidigital number, since it uses as much as digits as its factorization.

1816414406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908207205.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 1816414406 is about 42619.4134872830. The cubic root of 1816414406 is about 1220.1268357786.

The spelling of 1816414406 in words is "one billion, eight hundred sixteen million, four hundred fourteen thousand, four hundred six".