78340498 has 8 divisors (see below), whose sum is σ = 118722492. Its totient is φ = 38766336.

The previous prime is 78340481. The next prime is 78340501. The reversal of 78340498 is 89404387.

It can be written as a sum of positive squares in 2 ways, for example, as 68773849 + 9566649 = 8293^2 + 3093^2 .

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

It is a super-2 number, since 2×78340498² = 12274467253776008, 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, 201715 + ... + 202102.

Almost surely, 2^78340498 is an apocalyptic number.

78340498 is a deficient number, since it is larger than the sum of its proper divisors (40381994).

78340498 is a wasteful number, since it uses less digits than its factorization.

78340498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403916.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 78340498 is about 8851.0167777493. The cubic root of 78340498 is about 427.8866886402.

The spelling of 78340498 in words is "seventy-eight million, three hundred forty thousand, four hundred ninety-eight".