69039252 has 72 divisors (see below), whose sum is σ = 180724544. Its totient is φ = 22208256.

The previous prime is 69039247. The next prime is 69039253. The reversal of 69039252 is 25293096.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69039253) 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, 159228 + ... + 159660.

Almost surely, 2^69039252 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 69039252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90362272).

69039252 is an abundant number, since it is smaller than the sum of its proper divisors (111685292).

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

69039252 is a wasteful number, since it uses less digits than its factorization.

69039252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589 (or 584 counting only the distinct ones).

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

The square root of 69039252 is about 8308.9862197503. The cubic root of 69039252 is about 410.2343534278.

The spelling of 69039252 in words is "sixty-nine million, thirty-nine thousand, two hundred fifty-two".