78433030 has 32 divisors (see below), whose sum is σ = 153770400. Its totient is φ = 28630272.

The previous prime is 78433027. The next prime is 78433031. The reversal of 78433030 is 3033487.

It is a self number, because there is not a number n which added to its sum of digits gives 78433030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78433031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8181 + ... + 14959.

It is an arithmetic number, because the mean of its divisors is an integer number (4805325).

Almost surely, 2^78433030 is an apocalyptic number.

78433030 is a deficient number, since it is larger than the sum of its proper divisors (75337370).

78433030 is a wasteful number, since it uses less digits than its factorization.

78433030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6888.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 78433030 is about 8856.2424311894. The cubic root of 78433030 is about 428.0550886962.

The spelling of 78433030 in words is "seventy-eight million, four hundred thirty-three thousand, thirty".