69000072 has 32 divisors (see below), whose sum is σ = 174934080. Its totient is φ = 22675520.

The previous prime is 69000067. The next prime is 69000091. The reversal of 69000072 is 27000096.

It is a super-2 number, since 2×69000072² = 9522019872010368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18543 + ... + 21950.

It is an arithmetic number, because the mean of its divisors is an integer number (5466690).

Almost surely, 2^69000072 is an apocalyptic number.

It is an amenable number.

69000072 is an abundant number, since it is smaller than the sum of its proper divisors (105934008).

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

69000072 is a wasteful number, since it uses less digits than its factorization.

69000072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40573 (or 40569 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 69000072 is about 8306.6281968077. The cubic root of 69000072 is about 410.1567356333.

Adding to 69000072 its sum of digits (24), we get a palindrome (69000096).

The spelling of 69000072 in words is "sixty-nine million, seventy-two", and thus it is an aban number and an uban number.