78450260 has 48 divisors (see below), whose sum is σ = 190076544. Its totient is φ = 26640768.

The previous prime is 78450247. The next prime is 78450269. The reversal of 78450260 is 6205487.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78450269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12362 + ... + 17598.

It is an arithmetic number, because the mean of its divisors is an integer number (3959928).

Almost surely, 2^78450260 is an apocalyptic number.

78450260 is a gapful number since it is divisible by the number (70) 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 78450260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95038272).

78450260 is an abundant number, since it is smaller than the sum of its proper divisors (111626284).

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

78450260 is a wasteful number, since it uses less digits than its factorization.

78450260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5360 (or 5358 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 78450260 is about 8857.2151379539. The cubic root of 78450260 is about 428.0864311429.

The spelling of 78450260 in words is "seventy-eight million, four hundred fifty thousand, two hundred sixty".