78246480 has 160 divisors (see below), whose sum is σ = 269982720. Its totient is φ = 18616320.

The previous prime is 78246457. The next prime is 78246521. The reversal of 78246480 is 8464287.

It is a super-2 number, since 2×78246480² = 12245023264780800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96316 + ... + 97124.

It is an arithmetic number, because the mean of its divisors is an integer number (1687392).

Almost surely, 2^78246480 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 78246480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134991360).

78246480 is an abundant number, since it is smaller than the sum of its proper divisors (191736240).

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

78246480 is a wasteful number, since it uses less digits than its factorization.

78246480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 78246480 is about 8845.7040420760. The cubic root of 78246480 is about 427.7154483252.

The spelling of 78246480 in words is "seventy-eight million, two hundred forty-six thousand, four hundred eighty".