78333234 has 64 divisors (see below), whose sum is σ = 187971840. Its totient is φ = 21288960.

The previous prime is 78333221. The next prime is 78333253. The reversal of 78333234 is 43233387.

It is a super-2 number, since 2×78333234² = 12272191097797512, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 78333195 and 78333204.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88474 + ... + 89354.

It is an arithmetic number, because the mean of its divisors is an integer number (2937060).

Almost surely, 2^78333234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78333234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93985920).

78333234 is an abundant number, since it is smaller than the sum of its proper divisors (109638606).

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

78333234 is a wasteful number, since it uses less digits than its factorization.

78333234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995.

The product of its digits is 36288, while the sum is 33.

The square root of 78333234 is about 8850.6064199014. The cubic root of 78333234 is about 427.8734631903.

The spelling of 78333234 in words is "seventy-eight million, three hundred thirty-three thousand, two hundred thirty-four".