78340364 has 6 divisors (see below), whose sum is σ = 137095644. Its totient is φ = 39170180.

The previous prime is 78340357. The next prime is 78340387. The reversal of 78340364 is 46304387.

It is a super-2 number, since 2×78340364² = 12274425263304992, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9792542 + ... + 9792549.

It is an arithmetic number, because the mean of its divisors is an integer number (22849274).

Almost surely, 2^78340364 is an apocalyptic number.

It is an amenable number.

78340364 is a deficient number, since it is larger than the sum of its proper divisors (58755280).

78340364 is a wasteful number, since it uses less digits than its factorization.

78340364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19585095 (or 19585093 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 78340364 is about 8851.0092079943. The cubic root of 78340364 is about 427.8864446759.

The spelling of 78340364 in words is "seventy-eight million, three hundred forty thousand, three hundred sixty-four".