38680078 has 4 divisors (see below), whose sum is σ = 58020120. Its totient is φ = 19340038.

The previous prime is 38680073. The next prime is 38680087. The reversal of 38680078 is 87008683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87008683 = 41 ⋅2122163.

It is a super-2 number, since 2×38680078² = 2992296868172168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38680078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38680073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9670018 + ... + 9670021.

It is an arithmetic number, because the mean of its divisors is an integer number (14505030).

Almost surely, 2^38680078 is an apocalyptic number.

38680078 is a deficient number, since it is larger than the sum of its proper divisors (19340042).

38680078 is a wasteful number, since it uses less digits than its factorization.

38680078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19340041.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 38680078 is about 6219.3309929606. The cubic root of 38680078 is about 338.1913123962.

The spelling of 38680078 in words is "thirty-eight million, six hundred eighty thousand, seventy-eight".