3649932 has 72 divisors (see below), whose sum is σ = 10854480. Its totient is φ = 1019520.

The previous prime is 3649931. The next prime is 3649949. The reversal of 3649932 is 2399463.

It is a happy number.

3649932 is a `hidden beast` number, since 3 + 649 + 9 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (3649931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4794 + ... + 5502.

Almost surely, 2^3649932 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3649932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5427240).

3649932 is an abundant number, since it is smaller than the sum of its proper divisors (7204548).

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

3649932 is a wasteful number, since it uses less digits than its factorization.

3649932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743 (or 738 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 3649932 is about 1910.4795209580. The cubic root of 3649932 is about 153.9672162744.

It can be divided in two parts, 364 and 9932, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 3649932 in words is "three million, six hundred forty-nine thousand, nine hundred thirty-two".