3818642 has 16 divisors (see below), whose sum is σ = 6262272. Its totient is φ = 1738560.

The previous prime is 3818641. The next prime is 3818651. The reversal of 3818642 is 2468183.

It is a junction number, because it is equal to n+sod(n) for n = 3818599 and 3818608.

It is not an unprimeable number, because it can be changed into a prime (3818641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 758 + ... + 2865.

It is an arithmetic number, because the mean of its divisors is an integer number (391392).

Almost surely, 2^3818642 is an apocalyptic number.

3818642 is a deficient number, since it is larger than the sum of its proper divisors (2443630).

3818642 is a wasteful number, since it uses less digits than its factorization.

3818642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3673.

The product of its digits is 9216, while the sum is 32.

The square root of 3818642 is about 1954.1345910658. The cubic root of 3818642 is about 156.3038402191.

The spelling of 3818642 in words is "three million, eight hundred eighteen thousand, six hundred forty-two".