3649050 has 120 divisors (see below), whose sum is σ = 10937916. Its totient is φ = 898560.

The previous prime is 3649049. The next prime is 3649057. The reversal of 3649050 is 509463.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2259009 + 1390041 = 1503^2 + 1179^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3649057) 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 59 ways as a sum of consecutive naturals, for example, 68824 + ... + 68876.

Almost surely, 2^3649050 is an apocalyptic number.

3649050 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 3649050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5468958).

3649050 is an abundant number, since it is smaller than the sum of its proper divisors (7288866).

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

3649050 is a wasteful number, since it uses less digits than its factorization.

3649050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 3649050 is about 1910.2486749112. The cubic root of 3649050 is about 153.9548133013.

The spelling of 3649050 in words is "three million, six hundred forty-nine thousand, fifty".