78453504 has 108 divisors (see below), whose sum is σ = 239626296. Its totient is φ = 24600576.

The previous prime is 78453499. The next prime is 78453511. The reversal of 78453504 is 40535487.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 38167 + ... + 40169.

It is an arithmetic number, because the mean of its divisors is an integer number (2218762).

Almost surely, 2^78453504 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 78453504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119813148).

78453504 is an abundant number, since it is smaller than the sum of its proper divisors (161172792).

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

78453504 is a wasteful number, since it uses less digits than its factorization.

78453504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042 (or 2025 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 78453504 is about 8857.3982635986. The cubic root of 78453504 is about 428.0923316682.

The spelling of 78453504 in words is "seventy-eight million, four hundred fifty-three thousand, five hundred four".