78234248 has 32 divisors (see below), whose sum is σ = 155628000. Its totient is φ = 36766080.

The previous prime is 78234217. The next prime is 78234251. The reversal of 78234248 is 84243287.

It is a happy number.

It is a super-2 number, since 2×78234248² = 12241195120251008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17948 + ... + 21876.

It is an arithmetic number, because the mean of its divisors is an integer number (4863375).

Almost surely, 2^78234248 is an apocalyptic number.

It is an amenable number.

78234248 is a deficient number, since it is larger than the sum of its proper divisors (77393752).

78234248 is a wasteful number, since it uses less digits than its factorization.

78234248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085 (or 4081 counting only the distinct ones).

The product of its digits is 86016, while the sum is 38.

The square root of 78234248 is about 8845.0126059831. The cubic root of 78234248 is about 427.6931594077.

The spelling of 78234248 in words is "seventy-eight million, two hundred thirty-four thousand, two hundred forty-eight".