3618420 has 48 divisors (see below), whose sum is σ = 10913280. Its totient is φ = 890496.

The previous prime is 3618409. The next prime is 3618421. The reversal of 3618420 is 248163.

3618420 = T₁₉ + T₂₀ + ... + T₂₇₈.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3618421) by changing a digit.

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, 1540 + ... + 3099.

It is an arithmetic number, because the mean of its divisors is an integer number (227360).

Almost surely, 2^3618420 is an apocalyptic number.

3618420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3618420 is an abundant number, since it is smaller than the sum of its proper divisors (7294860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3618420 is a wasteful number, since it uses less digits than its factorization.

3618420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664 (or 4662 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 3618420 is about 1902.2144989459. The cubic root of 3618420 is about 153.5228385771.

The spelling of 3618420 in words is "three million, six hundred eighteen thousand, four hundred twenty".