78380496 has 60 divisors (see below), whose sum is σ = 221450112. Its totient is φ = 25877568.

The previous prime is 78380459. The next prime is 78380503. The reversal of 78380496 is 69408387.

It is a happy number.

78380496 is a `hidden beast` number, since 7 + 83 + 80 + 496 = 666.

It is a super-2 number, since 2×78380496² = 12287004306412032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12865 + ... + 17951.

Almost surely, 2^78380496 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 78380496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110725056).

78380496 is an abundant number, since it is smaller than the sum of its proper divisors (143069616).

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

78380496 is a wasteful number, since it uses less digits than its factorization.

78380496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5208 (or 5199 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 78380496 is about 8853.2760038304. The cubic root of 78380496 is about 427.9594977250.

The spelling of 78380496 in words is "seventy-eight million, three hundred eighty thousand, four hundred ninety-six".