78344982 has 20 divisors (see below), whose sum is σ = 175551156. Its totient is φ = 26114940.

The previous prime is 78344963. The next prime is 78344983. The reversal of 78344982 is 28944387.

It is a super-2 number, since 2×78344982² = 12275872409160648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78344983) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 241644 + ... + 241967.

Almost surely, 2^78344982 is an apocalyptic number.

78344982 is an abundant number, since it is smaller than the sum of its proper divisors (97206174).

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

78344982 is a wasteful number, since it uses less digits than its factorization.

78344982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483625 (or 483616 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 78344982 is about 8851.2700783560. The cubic root of 78344982 is about 427.8948521799.

The spelling of 78344982 in words is "seventy-eight million, three hundred forty-four thousand, nine hundred eighty-two".