78380354 has 8 divisors (see below), whose sum is σ = 126614460. Its totient is φ = 36175536.

The previous prime is 78380333. The next prime is 78380371. The reversal of 78380354 is 45308387.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61199329 + 17181025 = 7823^2 + 4145^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78380354² = 12286959786330632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1507289 + ... + 1507340.

Almost surely, 2^78380354 is an apocalyptic number.

78380354 is a deficient number, since it is larger than the sum of its proper divisors (48234106).

78380354 is a wasteful number, since it uses less digits than its factorization.

78380354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3014644.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 78380354 is about 8853.2679841966. The cubic root of 78380354 is about 427.9592392836.

The spelling of 78380354 in words is "seventy-eight million, three hundred eighty thousand, three hundred fifty-four".