69435072 has 168 divisors, whose sum is σ = 241072416. Its totient is φ = 18653184.

The previous prime is 69435059. The next prime is 69435073. The reversal of 69435072 is 27053496.

It is a tau number, because it is divible by the number of its divisors (168).

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 (69435073) 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, 68038 + ... + 69050.

Almost surely, 2^69435072 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 69435072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120536208).

69435072 is an abundant number, since it is smaller than the sum of its proper divisors (171637344).

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

69435072 is a wasteful number, since it uses less digits than its factorization.

69435072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 1042 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 69435072 is about 8332.7709676914. The cubic root of 69435072 is about 411.0168533413.

The spelling of 69435072 in words is "sixty-nine million, four hundred thirty-five thousand, seventy-two".