78336270 has 24 divisors (see below), whose sum is σ = 203674536. Its totient is φ = 20889648.

The previous prime is 78336211. The next prime is 78336283. The reversal of 78336270 is 7263387.

It is a super-2 number, since 2×78336270² = 12273142395025800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 435112 + ... + 435291.

It is an arithmetic number, because the mean of its divisors is an integer number (8486439).

Almost surely, 2^78336270 is an apocalyptic number.

78336270 is an abundant number, since it is smaller than the sum of its proper divisors (125338266).

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

78336270 is a wasteful number, since it uses less digits than its factorization.

78336270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870416 (or 870413 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 78336270 is about 8850.7779319108. Note that the first 3 decimals coincide. The cubic root of 78336270 is about 427.8789908869.

It can be divided in two parts, 78336 and 270, that added together give a triangular number (78606 = T₃₉₆).

The spelling of 78336270 in words is "seventy-eight million, three hundred thirty-six thousand, two hundred seventy".