78340324 has 24 divisors (see below), whose sum is σ = 140706720. Its totient is φ = 38144064.

The previous prime is 78340319. The next prime is 78340351. The reversal of 78340324 is 42304387.

It is a happy number.

It is a super-2 number, since 2×78340324² = 12274412728849952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96432 + ... + 97240.

It is an arithmetic number, because the mean of its divisors is an integer number (5862780).

Almost surely, 2^78340324 is an apocalyptic number.

It is an amenable number.

78340324 is a deficient number, since it is larger than the sum of its proper divisors (62366396).

78340324 is a wasteful number, since it uses less digits than its factorization.

78340324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419 (or 1417 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 78340324 is about 8851.0069483647. The cubic root of 78340324 is about 427.8863718507.

The spelling of 78340324 in words is "seventy-eight million, three hundred forty thousand, three hundred twenty-four".