78114450 has 24 divisors (see below), whose sum is σ = 193724208. Its totient is φ = 20830480.

The previous prime is 78114433. The next prime is 78114457. The reversal of 78114450 is 5441187.

It is a super-2 number, since 2×78114450² = 12203734597605000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (78114457) 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, 260232 + ... + 260531.

It is an arithmetic number, because the mean of its divisors is an integer number (8071842).

Almost surely, 2^78114450 is an apocalyptic number.

78114450 is an abundant number, since it is smaller than the sum of its proper divisors (115609758).

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

78114450 is a wasteful number, since it uses less digits than its factorization.

78114450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520778 (or 520773 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 78114450 is about 8838.2379465593. The cubic root of 78114450 is about 427.4747428736.

The spelling of 78114450 in words is "seventy-eight million, one hundred fourteen thousand, four hundred fifty".