3646390 has 16 divisors (see below), whose sum is σ = 7160400. Its totient is φ = 1325920.

The previous prime is 3646369. The next prime is 3646393. The reversal of 3646390 is 936463.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3646393) 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, 16465 + ... + 16684.

It is an arithmetic number, because the mean of its divisors is an integer number (447525).

Almost surely, 2^3646390 is an apocalyptic number.

3646390 is a deficient number, since it is larger than the sum of its proper divisors (3514010).

3646390 is a wasteful number, since it uses less digits than its factorization.

3646390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33167.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 3646390 is about 1909.5523035518. The cubic root of 3646390 is about 153.9173954025.

The spelling of 3646390 in words is "three million, six hundred forty-six thousand, three hundred ninety".