69139068 has 48 divisors (see below), whose sum is σ = 174472704. Its totient is φ = 21226240.

The previous prime is 69139061. The next prime is 69139069. The reversal of 69139068 is 86093196.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69139061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5983 + ... + 13193.

It is an arithmetic number, because the mean of its divisors is an integer number (3634848).

Almost surely, 2^69139068 is an apocalyptic number.

69139068 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69139068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87236352).

69139068 is an abundant number, since it is smaller than the sum of its proper divisors (105333636).

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

69139068 is a wasteful number, since it uses less digits than its factorization.

69139068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7282 (or 7280 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 69139068 is about 8314.9905592249. The cubic root of 69139068 is about 410.4319619518.

The spelling of 69139068 in words is "sixty-nine million, one hundred thirty-nine thousand, sixty-eight".