3634650 has 72 divisors (see below), whose sum is σ = 10054044. Its totient is φ = 940800.

The previous prime is 3634639. The next prime is 3634663. The reversal of 3634650 is 564363.

3634650 is a `hidden beast` number, since 3 + 6 + 3 + 4 + 650 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 1447209 + 2187441 = 1203^2 + 1479^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18352 + ... + 18548.

Almost surely, 2^3634650 is an apocalyptic number.

3634650 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3634650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5027022).

3634650 is an abundant number, since it is smaller than the sum of its proper divisors (6419394).

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

3634650 is a wasteful number, since it uses less digits than its factorization.

3634650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 3634650 is about 1906.4758062981. The cubic root of 3634650 is about 153.7520324935.

The spelling of 3634650 in words is "three million, six hundred thirty-four thousand, six hundred fifty".