78303300 has 36 divisors (see below), whose sum is σ = 226558416. Its totient is φ = 20880800.

The previous prime is 78303289. The next prime is 78303307. The reversal of 78303300 is 330387.

It is a super-2 number, since 2×78303300² = 12262813581780000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78303307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130206 + ... + 130805.

Almost surely, 2^78303300 is an apocalyptic number.

It is an amenable number.

78303300 is an abundant number, since it is smaller than the sum of its proper divisors (148255116).

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

78303300 is a wasteful number, since it uses less digits than its factorization.

78303300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261028 (or 261021 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 78303300 is about 8848.9151877504. The cubic root of 78303300 is about 427.8189542018.

Adding to 78303300 its reverse (330387), we get a palindrome (78633687).

The spelling of 78303300 in words is "seventy-eight million, three hundred three thousand, three hundred".