78340941 has 24 divisors (see below), whose sum is σ = 129564864. Its totient is φ = 44683200.

The previous prime is 78340939. The next prime is 78340987. The reversal of 78340941 is 14904387.

It is a happy number.

It is not a de Polignac number, because 78340941 - 2¹ = 78340939 is a prime.

It is a super-2 number, since 2×78340941² = 12274606073530962, 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 = 78340896 and 78340905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78340901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53266 + ... + 54716.

It is an arithmetic number, because the mean of its divisors is an integer number (5398536).

Almost surely, 2^78340941 is an apocalyptic number.

It is an amenable number.

78340941 is a deficient number, since it is larger than the sum of its proper divisors (51223923).

78340941 is a wasteful number, since it uses less digits than its factorization.

78340941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321 (or 2318 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 78340941 is about 8851.0418030874. The cubic root of 78340941 is about 427.8874951768.

The spelling of 78340941 in words is "seventy-eight million, three hundred forty thousand, nine hundred forty-one".