78343232 has 56 divisors (see below), whose sum is σ = 178551840. Its totient is φ = 33730560.

The previous prime is 78343211. The next prime is 78343241. The reversal of 78343232 is 23234387.

It is a super-2 number, since 2×78343232² = 12275324000411648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10448 + ... + 16304.

Almost surely, 2^78343232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78343232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89275920).

78343232 is an abundant number, since it is smaller than the sum of its proper divisors (100208608).

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

78343232 is a wasteful number, since it uses less digits than its factorization.

78343232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5899 (or 5889 counting only the distinct ones).

The product of its digits is 24192, while the sum is 32.

The square root of 78343232 is about 8851.1712219344. The cubic root of 78343232 is about 427.8916661789.

The spelling of 78343232 in words is "seventy-eight million, three hundred forty-three thousand, two hundred thirty-two".