340078931 has 8 divisors (see below), whose sum is σ = 361952784. Its totient is φ = 318412800.

The previous prime is 340078919. The next prime is 340078939. The reversal of 340078931 is 139870043.

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

It is a cyclic number.

It is not a de Polignac number, because 340078931 - 2⁶ = 340078867 is a prime.

It is a super-2 number, since 2×340078931² = 231307358620205522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340078891 and 340078900.

It is not an unprimeable number, because it can be changed into a prime (340078939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48545 + ... + 55106.

It is an arithmetic number, because the mean of its divisors is an integer number (45244098).

Almost surely, 2^340078931 is an apocalyptic number.

340078931 is a deficient number, since it is larger than the sum of its proper divisors (21873853).

340078931 is a wasteful number, since it uses less digits than its factorization.

340078931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103861.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 340078931 is about 18441.2291076273. The cubic root of 340078931 is about 698.0072104574.

The spelling of 340078931 in words is "three hundred forty million, seventy-eight thousand, nine hundred thirty-one".