78629344 has 24 divisors (see below), whose sum is σ = 155991528. Its totient is φ = 39012480.

The previous prime is 78629339. The next prime is 78629371. The reversal of 78629344 is 44392687.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 78629344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5187 + ... + 13570.

It is an arithmetic number, because the mean of its divisors is an integer number (6499647).

Almost surely, 2^78629344 is an apocalyptic number.

It is an amenable number.

78629344 is a deficient number, since it is larger than the sum of its proper divisors (77362184).

78629344 is a wasteful number, since it uses less digits than its factorization.

78629344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18898 (or 18890 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The square root of 78629344 is about 8867.3188732559. The cubic root of 78629344 is about 428.4119247286.

The spelling of 78629344 in words is "seventy-eight million, six hundred twenty-nine thousand, three hundred forty-four".