3820356 has 18 divisors (see below), whose sum is σ = 9657102. Its totient is φ = 1273440.

The previous prime is 3820351. The next prime is 3820357. The reversal of 3820356 is 6530283.

It can be written as a sum of positive squares in only one way, i.e., 3686400 + 133956 = 1920^2 + 366^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (3820351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53025 + ... + 53096.

Almost surely, 2^3820356 is an apocalyptic number.

3820356 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3820356 is an abundant number, since it is smaller than the sum of its proper divisors (5836746).

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

3820356 is a wasteful number, since it uses less digits than its factorization.

3820356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106131 (or 106126 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 3820356 is about 1954.5730991703. The cubic root of 3820356 is about 156.3272224153.

The spelling of 3820356 in words is "three million, eight hundred twenty thousand, three hundred fifty-six".