78300152 has 16 divisors (see below), whose sum is σ = 167786160. Its totient is φ = 33557184.

The previous prime is 78300151. The next prime is 78300161. The reversal of 78300152 is 25100387.

It is a super-2 number, since 2×78300152² = 12261827606446208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78300151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699053 + ... + 699164.

It is an arithmetic number, because the mean of its divisors is an integer number (10486635).

Almost surely, 2^78300152 is an apocalyptic number.

It is an amenable number.

78300152 is an abundant number, since it is smaller than the sum of its proper divisors (89486008).

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

78300152 is a wasteful number, since it uses less digits than its factorization.

78300152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398230 (or 1398226 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 78300152 is about 8848.7373110518. The cubic root of 78300152 is about 427.8132209734.

The spelling of 78300152 in words is "seventy-eight million, three hundred thousand, one hundred fifty-two".