3969252 has 72 divisors (see below), whose sum is σ = 12084800. Its totient is φ = 1073088.

The previous prime is 3969247. The next prime is 3969253. The reversal of 3969252 is 2529693.

3969252 is nontrivially palindromic in base 5.

It is a super-2 number, since 2×3969252² = 31509922879008, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (3969253) 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, 4374 + ... + 5202.

Almost surely, 2^3969252 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 3969252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6042400).

3969252 is an abundant number, since it is smaller than the sum of its proper divisors (8115548).

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

3969252 is a wasteful number, since it uses less digits than its factorization.

3969252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 860 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 3969252 is about 1992.2981704554. The cubic root of 3969252 is about 158.3323134437.

The spelling of 3969252 in words is "three million, nine hundred sixty-nine thousand, two hundred fifty-two".