78583242 has 16 divisors (see below), whose sum is σ = 157332960. Its totient is φ = 26166672.

The previous prime is 78583237. The next prime is 78583247. The reversal of 78583242 is 24238587.

It is an interprime number because it is at equal distance from previous prime (78583237) and next prime (78583247).

It is a self number, because there is not a number n which added to its sum of digits gives 78583242.

It is not an unprimeable number, because it can be changed into a prime (78583247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313 + ... + 12540.

It is an arithmetic number, because the mean of its divisors is an integer number (9833310).

Almost surely, 2^78583242 is an apocalyptic number.

78583242 is an abundant number, since it is smaller than the sum of its proper divisors (78749718).

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

78583242 is a wasteful number, since it uses less digits than its factorization.

78583242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13877.

The product of its digits is 107520, while the sum is 39.

The square root of 78583242 is about 8864.7189464754. The cubic root of 78583242 is about 428.3281794545.

The spelling of 78583242 in words is "seventy-eight million, five hundred eighty-three thousand, two hundred forty-two".