69478080 has 224 divisors, whose sum is σ = 258470400. Its totient is φ = 15805440.

The previous prime is 69478069. The next prime is 69478081. The reversal of 69478080 is 8087496.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (69478081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329175 + ... + 329385.

Almost surely, 2^69478080 is an apocalyptic number.

69478080 is a gapful number since it is divisible by the number (60) 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 69478080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129235200).

69478080 is an abundant number, since it is smaller than the sum of its proper divisors (188992320).

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

69478080 is a wasteful number, since it uses less digits than its factorization.

69478080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 69478080 is about 8335.3512223541. The cubic root of 69478080 is about 411.1016969410.

The spelling of 69478080 in words is "sixty-nine million, four hundred seventy-eight thousand, eighty".