78259480 has 96 divisors (see below), whose sum is σ = 201877200. Its totient is φ = 27067392.

The previous prime is 78259451. The next prime is 78259481. The reversal of 78259480 is 8495287.

It is a super-2 number, since 2×78259480² = 12249092419740800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78259481) 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, 879276 + ... + 879364.

Almost surely, 2^78259480 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 78259480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100938600).

78259480 is an abundant number, since it is smaller than the sum of its proper divisors (123617720).

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

78259480 is a wasteful number, since it uses less digits than its factorization.

78259480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 78259480 is about 8846.4388315299. The cubic root of 78259480 is about 427.7391341316.

The spelling of 78259480 in words is "seventy-eight million, two hundred fifty-nine thousand, four hundred eighty".