78112302 has 8 divisors (see below), whose sum is σ = 156224616. Its totient is φ = 26037432.

The previous prime is 78112271. The next prime is 78112303. The reversal of 78112302 is 20321187.

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

78112302 is an admirable number.

It is a super-2 number, since 2×78112302² = 12203063447478408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78112303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6509353 + ... + 6509364.

It is an arithmetic number, because the mean of its divisors is an integer number (19528077).

Almost surely, 2^78112302 is an apocalyptic number.

78112302 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78112302 is a wasteful number, since it uses less digits than its factorization.

78112302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13018722.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 78112302 is about 8838.1164282895. The cubic root of 78112302 is about 427.4708245880.

Adding to 78112302 its reverse (20321187), we get a palindrome (98433489).

The spelling of 78112302 in words is "seventy-eight million, one hundred twelve thousand, three hundred two".