3685420 has 12 divisors (see below), whose sum is σ = 7739424. Its totient is φ = 1474160.

The previous prime is 3685417. The next prime is 3685427. The reversal of 3685420 is 245863.

It is not an unprimeable number, because it can be changed into a prime (3685427) 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, 92116 + ... + 92155.

It is an arithmetic number, because the mean of its divisors is an integer number (644952).

Almost surely, 2^3685420 is an apocalyptic number.

It is an amenable number.

3685420 is an abundant number, since it is smaller than the sum of its proper divisors (4054004).

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

3685420 is a wasteful number, since it uses less digits than its factorization.

3685420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184280 (or 184278 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 3685420 is about 1919.7447747031. The cubic root of 3685420 is about 154.4646113828.

The spelling of 3685420 in words is "three million, six hundred eighty-five thousand, four hundred twenty".