78265488 has 80 divisors (see below), whose sum is σ = 233298560. Its totient is φ = 22146048.

The previous prime is 78265487. The next prime is 78265507. The reversal of 78265488 is 88456287.

It is a super-2 number, since 2×78265488² = 12250973223756288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (78265487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35556 + ... + 37692.

It is an arithmetic number, because the mean of its divisors is an integer number (2916232).

Almost surely, 2^78265488 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 78265488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116649280).

78265488 is an abundant number, since it is smaller than the sum of its proper divisors (155033072).

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

78265488 is a wasteful number, since it uses less digits than its factorization.

78265488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264 (or 2258 counting only the distinct ones).

The product of its digits is 860160, while the sum is 48.

The square root of 78265488 is about 8846.7783966820. The cubic root of 78265488 is about 427.7500797318.

The spelling of 78265488 in words is "seventy-eight million, two hundred sixty-five thousand, four hundred eighty-eight".