78190234 has 8 divisors (see below), whose sum is σ = 119780928. Its totient is φ = 38263260.

The previous prime is 78190201. The next prime is 78190249. The reversal of 78190234 is 43209187.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78190234² = 12227425385949512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78190234.

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, 415812 + ... + 415999.

It is an arithmetic number, because the mean of its divisors is an integer number (14972616).

Almost surely, 2^78190234 is an apocalyptic number.

78190234 is a deficient number, since it is larger than the sum of its proper divisors (41590694).

78190234 is a wasteful number, since it uses less digits than its factorization.

78190234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831860.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 78190234 is about 8842.5241871312. The cubic root of 78190234 is about 427.6129387095.

The spelling of 78190234 in words is "seventy-eight million, one hundred ninety thousand, two hundred thirty-four".